Question

what number is to be added from 9, 11, 14 and 18 so that they will be in proportion ​

Answer 1

in 11& 14 you want to add 1

Step-by-step explanation:

so we get the correct answer

Answer 2

Answer:

-4

Step-by-step explanation:

When we add -4 to each numbers we get the new numbers as

5, 7, 10, 14.

5 : 7 = 10 : 14

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