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Finding the Fourth Proportional to 57,979.80, 86,937.30 and 24,694.20

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Solution

The fourth proportional to 57,979.80, 86,937.30 and 24,694.20 is: 37,027.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,979.80 : 86,937.30 = 24,694.20 : x
  2. Step 2: Convert to fraction form
    57,979.80/86,937.30 = 24,694.20/x
  3. Step 3: Cross multiply
    57,979.80x = 86,937.30 × 24,694.20
  4. Step 4: Simplify right side
    57,979.80x = 2,146,847,073.66
  5. Step 5: Solve for x
    x = 2,146,847,073.66/57,979.80
  6. Step 6: Final answer
    x = 37,027.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.