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Finding the Fourth Proportional to 62,217, 85,859.46 and 39,862.44

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Solution

The fourth proportional to 62,217, 85,859.46 and 39,862.44 is: 55,010.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,217 : 85,859.46 = 39,862.44 : x
  2. Step 2: Convert to fraction form
    62,217/85,859.46 = 39,862.44/x
  3. Step 3: Cross multiply
    62,217x = 85,859.46 × 39,862.44
  4. Step 4: Simplify right side
    62,217x = 3,422,567,572.68
  5. Step 5: Solve for x
    x = 3,422,567,572.68/62,217
  6. Step 6: Final answer
    x = 55,010.17

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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.