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$begingroup$
By a calculation of the size of the cubic cm which its sizes are: 3.8330 * 3.8330 * 5.17455, I got a volume of 76.02. How can I get precisely '''76.04''' cubic cm, by changing the first two mentioned factors (i.e. 3.8330 * 3.8330 * 5.17455) equally?
N.b. I tried many ways and I couldn't find it, always I got more or less but not precisely.
geometry
New contributor
$endgroup$
add a comment |
$begingroup$
By a calculation of the size of the cubic cm which its sizes are: 3.8330 * 3.8330 * 5.17455, I got a volume of 76.02. How can I get precisely '''76.04''' cubic cm, by changing the first two mentioned factors (i.e. 3.8330 * 3.8330 * 5.17455) equally?
N.b. I tried many ways and I couldn't find it, always I got more or less but not precisely.
geometry
New contributor
$endgroup$
add a comment |
$begingroup$
By a calculation of the size of the cubic cm which its sizes are: 3.8330 * 3.8330 * 5.17455, I got a volume of 76.02. How can I get precisely '''76.04''' cubic cm, by changing the first two mentioned factors (i.e. 3.8330 * 3.8330 * 5.17455) equally?
N.b. I tried many ways and I couldn't find it, always I got more or less but not precisely.
geometry
New contributor
$endgroup$
By a calculation of the size of the cubic cm which its sizes are: 3.8330 * 3.8330 * 5.17455, I got a volume of 76.02. How can I get precisely '''76.04''' cubic cm, by changing the first two mentioned factors (i.e. 3.8330 * 3.8330 * 5.17455) equally?
N.b. I tried many ways and I couldn't find it, always I got more or less but not precisely.
geometry
geometry
New contributor
New contributor
edited 48 mins ago
Ubiquitous Student
New contributor
asked 2 hours ago
Ubiquitous StudentUbiquitous Student
1114
1114
New contributor
New contributor
add a comment |
add a comment |
3 Answers
3
active
oldest
votes
$begingroup$
You have $3.833 times 3.833 times5.174=76.02 .$
You can change it by multiplying both sides by $displaystyle frac{76.04}{76.02}$.
We then have $3.833 times 3.833 times5.174 times displaystyle frac{76.04}{76.02}=76.02 times displaystyle frac{76.04}{76.02}$.
This comes out to $3.833 times 3.833 times5.17564=76.04 $
$endgroup$
1
$begingroup$
+1 Note that you can multiply any one of the three factors by $76.04/75.02$, although there's an aesthetic argument for keeping the first two equal.
$endgroup$
– Ethan Bolker
1 hour ago
$begingroup$
Thank you very much for you answer (1+^). Is there a way to add change the first two parameters (3.833*3.833)? I mean even-though it'll be the same size, but if I want to change these dimensions is important.
$endgroup$
– Ubiquitous Student
1 hour ago
$begingroup$
@UbiquitousStudent do you want to change both of the first two parameters? or just one of them?
$endgroup$
– Saketh Malyala
1 hour ago
$begingroup$
you can multiply 3.833 by 76.04/76.02 instead
$endgroup$
– Saketh Malyala
1 hour ago
$begingroup$
You can take any two positive numbers $a$ and $b$, let $c = (76.04/76.02)/ab$ and then multiply each of the factors by $a$, $b$ and $c$. So you can make any two factors anything you like and adjust the third accordingly. If you want to keep the third factor the same and keep the first two equal, let $a = b =$ the square root of $76.04/76.02$.
$endgroup$
– Ethan Bolker
1 hour ago
|
show 1 more comment
$begingroup$
Actually $3.833 cdot 3.833 cdot 5.174 = 76.0158$ so the added volume will be $.0242$
One way is to think of it as adding a sheet $3.833 cdot 3.833$ with a volume of $0.0242 text{cm}^3$. How thick does it have to be to equal that volume?
Hence, $frac{0.0242}{3.833^2} = .00165$
So the dimensions will be $3.833 cdot 3.833 cdot (5.174 + .00165)$
$3.833 cdot 3.833 cdot 5.17565 = 76.040$
$endgroup$
$begingroup$
Thank you very much for you answer (1+^). Is there a way to add change the first two parameters (3.833*3.833)? I mean even-though it'll be the same size, but if I want to change these dimensions is important.
$endgroup$
– Ubiquitous Student
1 hour ago
add a comment |
$begingroup$
To avoid getting caught-up in specific numbers ...
Suppose you have
$$acdot b cdot c = d$$
but you want $d$ to become $e$. You can make this happen by multiplying both sides by $e/d$:
$$left(acdot b cdot c right)cdot frac{e}{d} = dcdotfrac{e}{d} = e$$
Now, you can use the left-hand side's factor of $e/d$ to make adjustments to $a$, $b$, and/or $c$. If you just wanted to adjust one factor, you could write, say,
$$left( acdot frac{e}{d}right)cdot bcdot c ;=; e tag{1}$$
If you wanted to adjust two factors proportionally (as is specifically requested in the question), you can "split" $e/d$ equally across the factors using a square root:
$$frac{e}{d} = sqrt{frac{e}{d}}cdotsqrt{frac{e}{d}} qquadtoqquadleft(acdot sqrt{frac{e}{d}}right)cdotleft(bcdot sqrt{frac{e}{d}}right)cdot c ;=; e tag{2}$$
Finally, if you later decide you actually want to adjust your entire box proportionally, you can use cube roots:
$$left(acdotsqrt[3]frac{e}{d}right)cdotleft(bcdotsqrt[3]frac{e}{d}right)cdot left(ccdotsqrt[3]frac{e}{d}right) ;=; e tag{3}$$
Naturally, the same type of thing works with any number of overall factors and desired adjustments, using higher-level roots as needed.
$endgroup$
add a comment |
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3 Answers
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active
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3 Answers
3
active
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active
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$begingroup$
You have $3.833 times 3.833 times5.174=76.02 .$
You can change it by multiplying both sides by $displaystyle frac{76.04}{76.02}$.
We then have $3.833 times 3.833 times5.174 times displaystyle frac{76.04}{76.02}=76.02 times displaystyle frac{76.04}{76.02}$.
This comes out to $3.833 times 3.833 times5.17564=76.04 $
$endgroup$
1
$begingroup$
+1 Note that you can multiply any one of the three factors by $76.04/75.02$, although there's an aesthetic argument for keeping the first two equal.
$endgroup$
– Ethan Bolker
1 hour ago
$begingroup$
Thank you very much for you answer (1+^). Is there a way to add change the first two parameters (3.833*3.833)? I mean even-though it'll be the same size, but if I want to change these dimensions is important.
$endgroup$
– Ubiquitous Student
1 hour ago
$begingroup$
@UbiquitousStudent do you want to change both of the first two parameters? or just one of them?
$endgroup$
– Saketh Malyala
1 hour ago
$begingroup$
you can multiply 3.833 by 76.04/76.02 instead
$endgroup$
– Saketh Malyala
1 hour ago
$begingroup$
You can take any two positive numbers $a$ and $b$, let $c = (76.04/76.02)/ab$ and then multiply each of the factors by $a$, $b$ and $c$. So you can make any two factors anything you like and adjust the third accordingly. If you want to keep the third factor the same and keep the first two equal, let $a = b =$ the square root of $76.04/76.02$.
$endgroup$
– Ethan Bolker
1 hour ago
|
show 1 more comment
$begingroup$
You have $3.833 times 3.833 times5.174=76.02 .$
You can change it by multiplying both sides by $displaystyle frac{76.04}{76.02}$.
We then have $3.833 times 3.833 times5.174 times displaystyle frac{76.04}{76.02}=76.02 times displaystyle frac{76.04}{76.02}$.
This comes out to $3.833 times 3.833 times5.17564=76.04 $
$endgroup$
1
$begingroup$
+1 Note that you can multiply any one of the three factors by $76.04/75.02$, although there's an aesthetic argument for keeping the first two equal.
$endgroup$
– Ethan Bolker
1 hour ago
$begingroup$
Thank you very much for you answer (1+^). Is there a way to add change the first two parameters (3.833*3.833)? I mean even-though it'll be the same size, but if I want to change these dimensions is important.
$endgroup$
– Ubiquitous Student
1 hour ago
$begingroup$
@UbiquitousStudent do you want to change both of the first two parameters? or just one of them?
$endgroup$
– Saketh Malyala
1 hour ago
$begingroup$
you can multiply 3.833 by 76.04/76.02 instead
$endgroup$
– Saketh Malyala
1 hour ago
$begingroup$
You can take any two positive numbers $a$ and $b$, let $c = (76.04/76.02)/ab$ and then multiply each of the factors by $a$, $b$ and $c$. So you can make any two factors anything you like and adjust the third accordingly. If you want to keep the third factor the same and keep the first two equal, let $a = b =$ the square root of $76.04/76.02$.
$endgroup$
– Ethan Bolker
1 hour ago
|
show 1 more comment
$begingroup$
You have $3.833 times 3.833 times5.174=76.02 .$
You can change it by multiplying both sides by $displaystyle frac{76.04}{76.02}$.
We then have $3.833 times 3.833 times5.174 times displaystyle frac{76.04}{76.02}=76.02 times displaystyle frac{76.04}{76.02}$.
This comes out to $3.833 times 3.833 times5.17564=76.04 $
$endgroup$
You have $3.833 times 3.833 times5.174=76.02 .$
You can change it by multiplying both sides by $displaystyle frac{76.04}{76.02}$.
We then have $3.833 times 3.833 times5.174 times displaystyle frac{76.04}{76.02}=76.02 times displaystyle frac{76.04}{76.02}$.
This comes out to $3.833 times 3.833 times5.17564=76.04 $
answered 2 hours ago
Saketh MalyalaSaketh Malyala
7,7041535
7,7041535
1
$begingroup$
+1 Note that you can multiply any one of the three factors by $76.04/75.02$, although there's an aesthetic argument for keeping the first two equal.
$endgroup$
– Ethan Bolker
1 hour ago
$begingroup$
Thank you very much for you answer (1+^). Is there a way to add change the first two parameters (3.833*3.833)? I mean even-though it'll be the same size, but if I want to change these dimensions is important.
$endgroup$
– Ubiquitous Student
1 hour ago
$begingroup$
@UbiquitousStudent do you want to change both of the first two parameters? or just one of them?
$endgroup$
– Saketh Malyala
1 hour ago
$begingroup$
you can multiply 3.833 by 76.04/76.02 instead
$endgroup$
– Saketh Malyala
1 hour ago
$begingroup$
You can take any two positive numbers $a$ and $b$, let $c = (76.04/76.02)/ab$ and then multiply each of the factors by $a$, $b$ and $c$. So you can make any two factors anything you like and adjust the third accordingly. If you want to keep the third factor the same and keep the first two equal, let $a = b =$ the square root of $76.04/76.02$.
$endgroup$
– Ethan Bolker
1 hour ago
|
show 1 more comment
1
$begingroup$
+1 Note that you can multiply any one of the three factors by $76.04/75.02$, although there's an aesthetic argument for keeping the first two equal.
$endgroup$
– Ethan Bolker
1 hour ago
$begingroup$
Thank you very much for you answer (1+^). Is there a way to add change the first two parameters (3.833*3.833)? I mean even-though it'll be the same size, but if I want to change these dimensions is important.
$endgroup$
– Ubiquitous Student
1 hour ago
$begingroup$
@UbiquitousStudent do you want to change both of the first two parameters? or just one of them?
$endgroup$
– Saketh Malyala
1 hour ago
$begingroup$
you can multiply 3.833 by 76.04/76.02 instead
$endgroup$
– Saketh Malyala
1 hour ago
$begingroup$
You can take any two positive numbers $a$ and $b$, let $c = (76.04/76.02)/ab$ and then multiply each of the factors by $a$, $b$ and $c$. So you can make any two factors anything you like and adjust the third accordingly. If you want to keep the third factor the same and keep the first two equal, let $a = b =$ the square root of $76.04/76.02$.
$endgroup$
– Ethan Bolker
1 hour ago
1
1
$begingroup$
+1 Note that you can multiply any one of the three factors by $76.04/75.02$, although there's an aesthetic argument for keeping the first two equal.
$endgroup$
– Ethan Bolker
1 hour ago
$begingroup$
+1 Note that you can multiply any one of the three factors by $76.04/75.02$, although there's an aesthetic argument for keeping the first two equal.
$endgroup$
– Ethan Bolker
1 hour ago
$begingroup$
Thank you very much for you answer (1+^). Is there a way to add change the first two parameters (3.833*3.833)? I mean even-though it'll be the same size, but if I want to change these dimensions is important.
$endgroup$
– Ubiquitous Student
1 hour ago
$begingroup$
Thank you very much for you answer (1+^). Is there a way to add change the first two parameters (3.833*3.833)? I mean even-though it'll be the same size, but if I want to change these dimensions is important.
$endgroup$
– Ubiquitous Student
1 hour ago
$begingroup$
@UbiquitousStudent do you want to change both of the first two parameters? or just one of them?
$endgroup$
– Saketh Malyala
1 hour ago
$begingroup$
@UbiquitousStudent do you want to change both of the first two parameters? or just one of them?
$endgroup$
– Saketh Malyala
1 hour ago
$begingroup$
you can multiply 3.833 by 76.04/76.02 instead
$endgroup$
– Saketh Malyala
1 hour ago
$begingroup$
you can multiply 3.833 by 76.04/76.02 instead
$endgroup$
– Saketh Malyala
1 hour ago
$begingroup$
You can take any two positive numbers $a$ and $b$, let $c = (76.04/76.02)/ab$ and then multiply each of the factors by $a$, $b$ and $c$. So you can make any two factors anything you like and adjust the third accordingly. If you want to keep the third factor the same and keep the first two equal, let $a = b =$ the square root of $76.04/76.02$.
$endgroup$
– Ethan Bolker
1 hour ago
$begingroup$
You can take any two positive numbers $a$ and $b$, let $c = (76.04/76.02)/ab$ and then multiply each of the factors by $a$, $b$ and $c$. So you can make any two factors anything you like and adjust the third accordingly. If you want to keep the third factor the same and keep the first two equal, let $a = b =$ the square root of $76.04/76.02$.
$endgroup$
– Ethan Bolker
1 hour ago
|
show 1 more comment
$begingroup$
Actually $3.833 cdot 3.833 cdot 5.174 = 76.0158$ so the added volume will be $.0242$
One way is to think of it as adding a sheet $3.833 cdot 3.833$ with a volume of $0.0242 text{cm}^3$. How thick does it have to be to equal that volume?
Hence, $frac{0.0242}{3.833^2} = .00165$
So the dimensions will be $3.833 cdot 3.833 cdot (5.174 + .00165)$
$3.833 cdot 3.833 cdot 5.17565 = 76.040$
$endgroup$
$begingroup$
Thank you very much for you answer (1+^). Is there a way to add change the first two parameters (3.833*3.833)? I mean even-though it'll be the same size, but if I want to change these dimensions is important.
$endgroup$
– Ubiquitous Student
1 hour ago
add a comment |
$begingroup$
Actually $3.833 cdot 3.833 cdot 5.174 = 76.0158$ so the added volume will be $.0242$
One way is to think of it as adding a sheet $3.833 cdot 3.833$ with a volume of $0.0242 text{cm}^3$. How thick does it have to be to equal that volume?
Hence, $frac{0.0242}{3.833^2} = .00165$
So the dimensions will be $3.833 cdot 3.833 cdot (5.174 + .00165)$
$3.833 cdot 3.833 cdot 5.17565 = 76.040$
$endgroup$
$begingroup$
Thank you very much for you answer (1+^). Is there a way to add change the first two parameters (3.833*3.833)? I mean even-though it'll be the same size, but if I want to change these dimensions is important.
$endgroup$
– Ubiquitous Student
1 hour ago
add a comment |
$begingroup$
Actually $3.833 cdot 3.833 cdot 5.174 = 76.0158$ so the added volume will be $.0242$
One way is to think of it as adding a sheet $3.833 cdot 3.833$ with a volume of $0.0242 text{cm}^3$. How thick does it have to be to equal that volume?
Hence, $frac{0.0242}{3.833^2} = .00165$
So the dimensions will be $3.833 cdot 3.833 cdot (5.174 + .00165)$
$3.833 cdot 3.833 cdot 5.17565 = 76.040$
$endgroup$
Actually $3.833 cdot 3.833 cdot 5.174 = 76.0158$ so the added volume will be $.0242$
One way is to think of it as adding a sheet $3.833 cdot 3.833$ with a volume of $0.0242 text{cm}^3$. How thick does it have to be to equal that volume?
Hence, $frac{0.0242}{3.833^2} = .00165$
So the dimensions will be $3.833 cdot 3.833 cdot (5.174 + .00165)$
$3.833 cdot 3.833 cdot 5.17565 = 76.040$
answered 1 hour ago
Phil HPhil H
4,3752412
4,3752412
$begingroup$
Thank you very much for you answer (1+^). Is there a way to add change the first two parameters (3.833*3.833)? I mean even-though it'll be the same size, but if I want to change these dimensions is important.
$endgroup$
– Ubiquitous Student
1 hour ago
add a comment |
$begingroup$
Thank you very much for you answer (1+^). Is there a way to add change the first two parameters (3.833*3.833)? I mean even-though it'll be the same size, but if I want to change these dimensions is important.
$endgroup$
– Ubiquitous Student
1 hour ago
$begingroup$
Thank you very much for you answer (1+^). Is there a way to add change the first two parameters (3.833*3.833)? I mean even-though it'll be the same size, but if I want to change these dimensions is important.
$endgroup$
– Ubiquitous Student
1 hour ago
$begingroup$
Thank you very much for you answer (1+^). Is there a way to add change the first two parameters (3.833*3.833)? I mean even-though it'll be the same size, but if I want to change these dimensions is important.
$endgroup$
– Ubiquitous Student
1 hour ago
add a comment |
$begingroup$
To avoid getting caught-up in specific numbers ...
Suppose you have
$$acdot b cdot c = d$$
but you want $d$ to become $e$. You can make this happen by multiplying both sides by $e/d$:
$$left(acdot b cdot c right)cdot frac{e}{d} = dcdotfrac{e}{d} = e$$
Now, you can use the left-hand side's factor of $e/d$ to make adjustments to $a$, $b$, and/or $c$. If you just wanted to adjust one factor, you could write, say,
$$left( acdot frac{e}{d}right)cdot bcdot c ;=; e tag{1}$$
If you wanted to adjust two factors proportionally (as is specifically requested in the question), you can "split" $e/d$ equally across the factors using a square root:
$$frac{e}{d} = sqrt{frac{e}{d}}cdotsqrt{frac{e}{d}} qquadtoqquadleft(acdot sqrt{frac{e}{d}}right)cdotleft(bcdot sqrt{frac{e}{d}}right)cdot c ;=; e tag{2}$$
Finally, if you later decide you actually want to adjust your entire box proportionally, you can use cube roots:
$$left(acdotsqrt[3]frac{e}{d}right)cdotleft(bcdotsqrt[3]frac{e}{d}right)cdot left(ccdotsqrt[3]frac{e}{d}right) ;=; e tag{3}$$
Naturally, the same type of thing works with any number of overall factors and desired adjustments, using higher-level roots as needed.
$endgroup$
add a comment |
$begingroup$
To avoid getting caught-up in specific numbers ...
Suppose you have
$$acdot b cdot c = d$$
but you want $d$ to become $e$. You can make this happen by multiplying both sides by $e/d$:
$$left(acdot b cdot c right)cdot frac{e}{d} = dcdotfrac{e}{d} = e$$
Now, you can use the left-hand side's factor of $e/d$ to make adjustments to $a$, $b$, and/or $c$. If you just wanted to adjust one factor, you could write, say,
$$left( acdot frac{e}{d}right)cdot bcdot c ;=; e tag{1}$$
If you wanted to adjust two factors proportionally (as is specifically requested in the question), you can "split" $e/d$ equally across the factors using a square root:
$$frac{e}{d} = sqrt{frac{e}{d}}cdotsqrt{frac{e}{d}} qquadtoqquadleft(acdot sqrt{frac{e}{d}}right)cdotleft(bcdot sqrt{frac{e}{d}}right)cdot c ;=; e tag{2}$$
Finally, if you later decide you actually want to adjust your entire box proportionally, you can use cube roots:
$$left(acdotsqrt[3]frac{e}{d}right)cdotleft(bcdotsqrt[3]frac{e}{d}right)cdot left(ccdotsqrt[3]frac{e}{d}right) ;=; e tag{3}$$
Naturally, the same type of thing works with any number of overall factors and desired adjustments, using higher-level roots as needed.
$endgroup$
add a comment |
$begingroup$
To avoid getting caught-up in specific numbers ...
Suppose you have
$$acdot b cdot c = d$$
but you want $d$ to become $e$. You can make this happen by multiplying both sides by $e/d$:
$$left(acdot b cdot c right)cdot frac{e}{d} = dcdotfrac{e}{d} = e$$
Now, you can use the left-hand side's factor of $e/d$ to make adjustments to $a$, $b$, and/or $c$. If you just wanted to adjust one factor, you could write, say,
$$left( acdot frac{e}{d}right)cdot bcdot c ;=; e tag{1}$$
If you wanted to adjust two factors proportionally (as is specifically requested in the question), you can "split" $e/d$ equally across the factors using a square root:
$$frac{e}{d} = sqrt{frac{e}{d}}cdotsqrt{frac{e}{d}} qquadtoqquadleft(acdot sqrt{frac{e}{d}}right)cdotleft(bcdot sqrt{frac{e}{d}}right)cdot c ;=; e tag{2}$$
Finally, if you later decide you actually want to adjust your entire box proportionally, you can use cube roots:
$$left(acdotsqrt[3]frac{e}{d}right)cdotleft(bcdotsqrt[3]frac{e}{d}right)cdot left(ccdotsqrt[3]frac{e}{d}right) ;=; e tag{3}$$
Naturally, the same type of thing works with any number of overall factors and desired adjustments, using higher-level roots as needed.
$endgroup$
To avoid getting caught-up in specific numbers ...
Suppose you have
$$acdot b cdot c = d$$
but you want $d$ to become $e$. You can make this happen by multiplying both sides by $e/d$:
$$left(acdot b cdot c right)cdot frac{e}{d} = dcdotfrac{e}{d} = e$$
Now, you can use the left-hand side's factor of $e/d$ to make adjustments to $a$, $b$, and/or $c$. If you just wanted to adjust one factor, you could write, say,
$$left( acdot frac{e}{d}right)cdot bcdot c ;=; e tag{1}$$
If you wanted to adjust two factors proportionally (as is specifically requested in the question), you can "split" $e/d$ equally across the factors using a square root:
$$frac{e}{d} = sqrt{frac{e}{d}}cdotsqrt{frac{e}{d}} qquadtoqquadleft(acdot sqrt{frac{e}{d}}right)cdotleft(bcdot sqrt{frac{e}{d}}right)cdot c ;=; e tag{2}$$
Finally, if you later decide you actually want to adjust your entire box proportionally, you can use cube roots:
$$left(acdotsqrt[3]frac{e}{d}right)cdotleft(bcdotsqrt[3]frac{e}{d}right)cdot left(ccdotsqrt[3]frac{e}{d}right) ;=; e tag{3}$$
Naturally, the same type of thing works with any number of overall factors and desired adjustments, using higher-level roots as needed.
answered 28 mins ago
BlueBlue
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49.8k970158
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