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Finding the Fourth Proportional to 66,654.68, 91,983.22 and 36,439.97

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Solution

The fourth proportional to 66,654.68, 91,983.22 and 36,439.97 is: 50,287.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,654.68 : 91,983.22 = 36,439.97 : x
  2. Step 2: Convert to fraction form
    66,654.68/91,983.22 = 36,439.97/x
  3. Step 3: Cross multiply
    66,654.68x = 91,983.22 × 36,439.97
  4. Step 4: Simplify right side
    66,654.68x = 3,351,865,226.29
  5. Step 5: Solve for x
    x = 3,351,865,226.29/66,654.68
  6. Step 6: Final answer
    x = 50,287.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.