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Finding the Fourth Proportional to 29,235.40, 43,859.64 and 13,644.52

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Solution

The fourth proportional to 29,235.40, 43,859.64 and 13,644.52 is: 20,469.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,235.40 : 43,859.64 = 13,644.52 : x
  2. Step 2: Convert to fraction form
    29,235.40/43,859.64 = 13,644.52/x
  3. Step 3: Cross multiply
    29,235.40x = 43,859.64 × 13,644.52
  4. Step 4: Simplify right side
    29,235.40x = 598,443,735.17
  5. Step 5: Solve for x
    x = 598,443,735.17/29,235.40
  6. Step 6: Final answer
    x = 20,469.83

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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.