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Finding the Fourth Proportional to 39,951.66, 59,911.92 and 14,978.09

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Solution

The fourth proportional to 39,951.66, 59,911.92 and 14,978.09 is: 22,461.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,951.66 : 59,911.92 = 14,978.09 : x
  2. Step 2: Convert to fraction form
    39,951.66/59,911.92 = 14,978.09/x
  3. Step 3: Cross multiply
    39,951.66x = 59,911.92 × 14,978.09
  4. Step 4: Simplify right side
    39,951.66x = 897,365,830.27
  5. Step 5: Solve for x
    x = 897,365,830.27/39,951.66
  6. Step 6: Final answer
    x = 22,461.29

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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.