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Finding the Fourth Proportional to 54,553.60, 81,811.20 and 24,985.60

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Solution

The fourth proportional to 54,553.60, 81,811.20 and 24,985.60 is: 37,469.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,553.60 : 81,811.20 = 24,985.60 : x
  2. Step 2: Convert to fraction form
    54,553.60/81,811.20 = 24,985.60/x
  3. Step 3: Cross multiply
    54,553.60x = 81,811.20 × 24,985.60
  4. Step 4: Simplify right side
    54,553.60x = 2,044,101,918.72
  5. Step 5: Solve for x
    x = 2,044,101,918.72/54,553.60
  6. Step 6: Final answer
    x = 37,469.61

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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.