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Finding the Fourth Proportional to 62,505.78, 86,257.99 and 34,211.47

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Solution

The fourth proportional to 62,505.78, 86,257.99 and 34,211.47 is: 47,211.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,505.78 : 86,257.99 = 34,211.47 : x
  2. Step 2: Convert to fraction form
    62,505.78/86,257.99 = 34,211.47/x
  3. Step 3: Cross multiply
    62,505.78x = 86,257.99 × 34,211.47
  4. Step 4: Simplify right side
    62,505.78x = 2,951,012,466.09
  5. Step 5: Solve for x
    x = 2,951,012,466.09/62,505.78
  6. Step 6: Final answer
    x = 47,211.83

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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.