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Finding the Fourth Proportional to 48,503.92, 72,755.91 and 13,443.88

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Solution

The fourth proportional to 48,503.92, 72,755.91 and 13,443.88 is: 20,165.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,503.92 : 72,755.91 = 13,443.88 : x
  2. Step 2: Convert to fraction form
    48,503.92/72,755.91 = 13,443.88/x
  3. Step 3: Cross multiply
    48,503.92x = 72,755.91 × 13,443.88
  4. Step 4: Simplify right side
    48,503.92x = 978,121,723.33
  5. Step 5: Solve for x
    x = 978,121,723.33/48,503.92
  6. Step 6: Final answer
    x = 20,165.83

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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.