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Finding the Fourth Proportional to 48,754.59, 73,134.60 and 13,691.50

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Solution

The fourth proportional to 48,754.59, 73,134.60 and 13,691.50 is: 20,538.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,754.59 : 73,134.60 = 13,691.50 : x
  2. Step 2: Convert to fraction form
    48,754.59/73,134.60 = 13,691.50/x
  3. Step 3: Cross multiply
    48,754.59x = 73,134.60 × 13,691.50
  4. Step 4: Simplify right side
    48,754.59x = 1,001,322,375.90
  5. Step 5: Solve for x
    x = 1,001,322,375.90/48,754.59
  6. Step 6: Final answer
    x = 20,538.01

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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.