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Finding the Fourth Proportional to 58,861.60, 81,217.40 and 33,020.96

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Solution

The fourth proportional to 58,861.60, 81,217.40 and 33,020.96 is: 45,562.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,861.60 : 81,217.40 = 33,020.96 : x
  2. Step 2: Convert to fraction form
    58,861.60/81,217.40 = 33,020.96/x
  3. Step 3: Cross multiply
    58,861.60x = 81,217.40 × 33,020.96
  4. Step 4: Simplify right side
    58,861.60x = 2,681,876,516.70
  5. Step 5: Solve for x
    x = 2,681,876,516.70/58,861.60
  6. Step 6: Final answer
    x = 45,562.41

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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.