What's In A. Tell whether each pair of ratios form a proportion. Write YES if it is a proportion and NO if it is not 1) 2:5 = 4:10 2 3:4=6:8 3) 5:6 = 4: 5 4) 4 : 12 = 3:9 5) 12 : 4 = 10:5 B. Puzzle: Use each number once to form three proportions. 7 6 3 9 49 2 8 12 4 14 1 48
