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Finding the Fourth Proportional to 29,866.78, 44,789.50 and 9,872.61

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Solution

The fourth proportional to 29,866.78, 44,789.50 and 9,872.61 is: 14,805.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,866.78 : 44,789.50 = 9,872.61 : x
  2. Step 2: Convert to fraction form
    29,866.78/44,789.50 = 9,872.61/x
  3. Step 3: Cross multiply
    29,866.78x = 44,789.50 × 9,872.61
  4. Step 4: Simplify right side
    29,866.78x = 442,189,265.60
  5. Step 5: Solve for x
    x = 442,189,265.60/29,866.78
  6. Step 6: Final answer
    x = 14,805.39

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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.