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In an aquarium, the ratio of dolphins to pufferfish is 2:3 and the ratio of pufferfish to starfish is 4:7. There are 8 dolphins in

In an aquarium, the ratio of dolphins to pufferfish is 2:3 and the ratio of pufferfish to starfish is 4:7. There are 8 dolphins in the aquarium. How many starfish are there?

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