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Finding the Fourth Proportional to 62,842.91, 86,721 and 34,548.38

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Solution

The fourth proportional to 62,842.91, 86,721 and 34,548.38 is: 47,675.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,842.91 : 86,721 = 34,548.38 : x
  2. Step 2: Convert to fraction form
    62,842.91/86,721 = 34,548.38/x
  3. Step 3: Cross multiply
    62,842.91x = 86,721 × 34,548.38
  4. Step 4: Simplify right side
    62,842.91x = 2,996,070,061.98
  5. Step 5: Solve for x
    x = 2,996,070,061.98/62,842.91
  6. Step 6: Final answer
    x = 47,675.55

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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.