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Finding the Fourth Proportional to 48,387.60, 72,581.40 and 36,577.80

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Solution

The fourth proportional to 48,387.60, 72,581.40 and 36,577.80 is: 54,866.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,387.60 : 72,581.40 = 36,577.80 : x
  2. Step 2: Convert to fraction form
    48,387.60/72,581.40 = 36,577.80/x
  3. Step 3: Cross multiply
    48,387.60x = 72,581.40 × 36,577.80
  4. Step 4: Simplify right side
    48,387.60x = 2,654,867,932.92
  5. Step 5: Solve for x
    x = 2,654,867,932.92/48,387.60
  6. Step 6: Final answer
    x = 54,866.70

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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.