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Finding the Fourth Proportional to 61,545.79, 84,930.78 and 34,693.75

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Solution

The fourth proportional to 61,545.79, 84,930.78 and 34,693.75 is: 47,876.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,545.79 : 84,930.78 = 34,693.75 : x
  2. Step 2: Convert to fraction form
    61,545.79/84,930.78 = 34,693.75/x
  3. Step 3: Cross multiply
    61,545.79x = 84,930.78 × 34,693.75
  4. Step 4: Simplify right side
    61,545.79x = 2,946,567,248.63
  5. Step 5: Solve for x
    x = 2,946,567,248.63/61,545.79
  6. Step 6: Final answer
    x = 47,876.02

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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.