KEISHZIELOUIEGO KEISHZIELOUIEGO Math Answered III. Solve and determine whether each is a Proportion or Not. Write Yes if Proportion and No if not Proportion.11. 3/5 = 9/1512. 18/21 = 12/1413. 18/45 = 2/514. 3:8 = 9:2515. 6:14 = 3:8