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Math·Problem-Solving and Data Analysis·Percentages

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The concentration of calcium, in milligrams per liter (mg/L), is found for three samples of water: bottled, tap, and mineral. The concentration of calcium in the sample of bottled water is $48\%$ of the concentration of calcium in the sample of tap water and $24\%$ of the concentration of calcium in the sample of mineral water. If the concentration of calcium in the sample of tap water is $36$ mg/L, what is the concentration of calcium, in mg/L, in the sample of mineral water?

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