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Finding the Fourth Proportional to 29,129.52, 43,694.30 and 7,241.52

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Solution

The fourth proportional to 29,129.52, 43,694.30 and 7,241.52 is: 10,862.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,129.52 : 43,694.30 = 7,241.52 : x
  2. Step 2: Convert to fraction form
    29,129.52/43,694.30 = 7,241.52/x
  3. Step 3: Cross multiply
    29,129.52x = 43,694.30 × 7,241.52
  4. Step 4: Simplify right side
    29,129.52x = 316,413,147.34
  5. Step 5: Solve for x
    x = 316,413,147.34/29,129.52
  6. Step 6: Final answer
    x = 10,862.28

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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.