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Finding the Fourth Proportional to 48,773.84, 73,188.84 and 20,691.68

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Solution

The fourth proportional to 48,773.84, 73,188.84 and 20,691.68 is: 31,049.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,773.84 : 73,188.84 = 20,691.68 : x
  2. Step 2: Convert to fraction form
    48,773.84/73,188.84 = 20,691.68/x
  3. Step 3: Cross multiply
    48,773.84x = 73,188.84 × 20,691.68
  4. Step 4: Simplify right side
    48,773.84x = 1,514,400,056.85
  5. Step 5: Solve for x
    x = 1,514,400,056.85/48,773.84
  6. Step 6: Final answer
    x = 31,049.43

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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.