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Finding the Fourth Proportional to 29,147.44, 43,721.04 and 9,425.98

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Solution

The fourth proportional to 29,147.44, 43,721.04 and 9,425.98 is: 14,138.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,147.44 : 43,721.04 = 9,425.98 : x
  2. Step 2: Convert to fraction form
    29,147.44/43,721.04 = 9,425.98/x
  3. Step 3: Cross multiply
    29,147.44x = 43,721.04 × 9,425.98
  4. Step 4: Simplify right side
    29,147.44x = 412,113,648.62
  5. Step 5: Solve for x
    x = 412,113,648.62/29,147.44
  6. Step 6: Final answer
    x = 14,138.93

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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.