Question

if the third peoportinal to 7and x is 28 find the value of x
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Answer 1

Answer:

x=4

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Answer 2

Answer:

Heya!

here's your answer -

Third proportional 'c' = a:b::b:c

Then, 7 : x :: x : 28

So, 7/x = x/28

x² = 7 × 28

x = √7 × 28

x = √196

x = 14

Hope it helps!