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Finding the Fourth Proportional to 62,486.89, 86,231.88 and 34,192.57

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Solution

The fourth proportional to 62,486.89, 86,231.88 and 34,192.57 is: 47,185.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,486.89 : 86,231.88 = 34,192.57 : x
  2. Step 2: Convert to fraction form
    62,486.89/86,231.88 = 34,192.57/x
  3. Step 3: Cross multiply
    62,486.89x = 86,231.88 × 34,192.57
  4. Step 4: Simplify right side
    62,486.89x = 2,948,489,593.13
  5. Step 5: Solve for x
    x = 2,948,489,593.13/62,486.89
  6. Step 6: Final answer
    x = 47,185.73

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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.