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Finding the Fourth Proportional to 61,581.50, 84,990.03 and 34,723.47

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Solution

The fourth proportional to 61,581.50, 84,990.03 and 34,723.47 is: 47,922.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,581.50 : 84,990.03 = 34,723.47 : x
  2. Step 2: Convert to fraction form
    61,581.50/84,990.03 = 34,723.47/x
  3. Step 3: Cross multiply
    61,581.50x = 84,990.03 × 34,723.47
  4. Step 4: Simplify right side
    61,581.50x = 2,951,148,757.00
  5. Step 5: Solve for x
    x = 2,951,148,757.00/61,581.50
  6. Step 6: Final answer
    x = 47,922.66

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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.