Find the value of if 3 : x :: 12 : 20. Find the value of x?
- 4
- 5
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- 7
Explanation
To solve this proportion, we can use the following steps:
Write the proportion as a fraction: 3/x = 12/20
Cross-multiply: 3 × 20 = 12 × x
Simplify: 60 = 12x
Divide both sides by 12: x = 60/12
Simplify: x = 5
So, the value of x is 5.
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