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During a research​ experiment, it was found that the number of bacteria in a culture grew...

During a research​ experiment, it was found that the number of bacteria in a culture grew at a rate proportional to its size. At 6​:00 AM there were 4,000 bacteria present in the culture. At​ noon, the number of bacteria grew to 4,700.

How many bacteria will there be at​ midnight?

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