Question

Find the value of x from the following proportion 5:20::3:x
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Answer 1

Answer:

5:20::3:x

product of means =product of extremes

5x=20×3

5x=60

X=60/5

X=12

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Answer 2

Given - Proportion

Find - Value of x

Solution - Representing the proportion in fraction form - $\frac{5}{20} = \frac{3}{x}$

Performing cross multiplication

5*x = 3*20

5x = 60

Shifting 5 to Right Hand Side

x = 60/5

Performing division

x = 12

Hence, the value of x is 12.