Question

Find the fourth proportional to 4,7, 20.​

Answer 1

Answer:

4:7::20:x

4/7::20/x

4/7=20/x

4x=20×7

x=20×7/4

x= 35

Answer 2

Answer:

4:7::20x

4/7::20/x

4/7=20/x

4x=2multipy into 7

x=20 multiply into 74

x=35

Step-by-step explanation:

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