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Finding the Fourth Proportional to 29,324.78, 43,980.42 and 17,481.90

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Solution

The fourth proportional to 29,324.78, 43,980.42 and 17,481.90 is: 26,218.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,324.78 : 43,980.42 = 17,481.90 : x
  2. Step 2: Convert to fraction form
    29,324.78/43,980.42 = 17,481.90/x
  3. Step 3: Cross multiply
    29,324.78x = 43,980.42 × 17,481.90
  4. Step 4: Simplify right side
    29,324.78x = 768,861,205.03
  5. Step 5: Solve for x
    x = 768,861,205.03/29,324.78
  6. Step 6: Final answer
    x = 26,218.82

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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.