Question

1.) find the fourth proportional to 8.4, 1.6 and 2.1 ​

Answer 1

Answer:

0.4

Step-by-step explanation:

let the fourth proportional be X

8.4:1.6::2.1:X

product of means =product of extremes

8.4×X=1.6×2.1

8.4× X=3.36

X=3.36/8.4

X=0.4

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Answer 2

Answer:

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