Question

find the fourth proportonal to the numbers:2.8,14,3.5

Answer 1

Refer to the attachment

Hope it helps

Answer 2

Thank you for asking this question. Here is your answer:

14 ÷ 2.8 = 5  

therefore  

3.5 × 5 = 17.5

because  

2.8/14 = 3.5/x  

x = 14 × 3.5 / 2.8  

x = 17.5

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