Josh is not correct! The top numbers compare oranges to oranges, which makes sense, but the bottom numbers compare apples to total fruit. The two ratios do not compare the same things. I can change the first ratio so that it also compares the ratio of oranges to total fruit. Add the parts of the ratio to get 3 + 7 = 10. Then the ratio of oranges to total fruit is [ggfrac]3/10[/ggfrac] . The correct equation can be [ggfrac]3/10[/ggfrac] =[ggfrac]12/x[/ggfrac] , which I can solve to find that there are 40 fruits in all.