.)Let x be the larger number... a) 27/x=3/4... x=36......b) 36/x=3/4...x=48....c) 63/x=3/4....x=84....d) 75/x=3/4....x=100....e) 93/x=3/4....x=124.... 2.) Convert 7.5 dm to cm...so 7.5×10= 75 cm... The ratio is now "60:75" simplifying, the new answer is "4:5".