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Finding the Fourth Proportional to 62,427.72, 86,147.82 and 34,133.88

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Solution

The fourth proportional to 62,427.72, 86,147.82 and 34,133.88 is: 47,103.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,427.72 : 86,147.82 = 34,133.88 : x
  2. Step 2: Convert to fraction form
    62,427.72/86,147.82 = 34,133.88/x
  3. Step 3: Cross multiply
    62,427.72x = 86,147.82 × 34,133.88
  4. Step 4: Simplify right side
    62,427.72x = 2,940,559,350.14
  5. Step 5: Solve for x
    x = 2,940,559,350.14/62,427.72
  6. Step 6: Final answer
    x = 47,103.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.