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Finding the Fourth Proportional to 48,459.56, 72,689.34 and 15,179.90

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Solution

The fourth proportional to 48,459.56, 72,689.34 and 15,179.90 is: 22,769.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,459.56 : 72,689.34 = 15,179.90 : x
  2. Step 2: Convert to fraction form
    48,459.56/72,689.34 = 15,179.90/x
  3. Step 3: Cross multiply
    48,459.56x = 72,689.34 × 15,179.90
  4. Step 4: Simplify right side
    48,459.56x = 1,103,416,912.27
  5. Step 5: Solve for x
    x = 1,103,416,912.27/48,459.56
  6. Step 6: Final answer
    x = 22,769.85

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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.