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Finding the Fourth Proportional to 29,906.12, 44,879.52 and 12,375.80

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Solution

The fourth proportional to 29,906.12, 44,879.52 and 12,375.80 is: 18,572.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,906.12 : 44,879.52 = 12,375.80 : x
  2. Step 2: Convert to fraction form
    29,906.12/44,879.52 = 12,375.80/x
  3. Step 3: Cross multiply
    29,906.12x = 44,879.52 × 12,375.80
  4. Step 4: Simplify right side
    29,906.12x = 555,419,963.62
  5. Step 5: Solve for x
    x = 555,419,963.62/29,906.12
  6. Step 6: Final answer
    x = 18,572.12

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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.