116. Решите следующие пропорции: 1 1) 1,4:2 = 0, 2x : 3; 3) 4,5x : 2,7 = 9:1,8; 3 5 2) 2:2,5 = 8,4: 7x; 4) 7 :1 0, 6x:0, 75. 7 6 2) 27​
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