What must be added to the numbers 7, 16, 43 and 79, so that they became proportional?

What must be added to the number 6, 10 , 14 and 22 so that they are in proportion?

What must be added to the number 6,10,14 and 22 so that they are in proportion?

What must be added to the numbers 61014 and 22 so that they are in proportion?

What number must be added to each of the numbers 6, 15, 20 and 43 to make them proportional ?

What must be added to the given numbers so that they are in proportion? a. 1, 3, 10, 18 b. 23, 34, 56, 78

What least number must be subtracted from each of the numbers 14, 17, 34 and 42 so that the remainders may be proportional ?