What should be substracted to each of the four numbers 7, 10, 30, 50 to make them proportional ?

What should be substracted to each of the four numbers 7, 10, 30, 50 t

1.	What should be substracted to each of the four numbers 7, 10, 30, 50 to make them proportional ?
A.	45/23
B.	50/17
C.	55/21
D.	57/23
Answer» C. 55/21

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What should be substracted to each of the four numbers 7, 10, 30, 50 to make them proportional ?

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