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Finding the Fourth Proportional to 86,562.92, 129,861.21 and 33,251

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Solution

The fourth proportional to 86,562.92, 129,861.21 and 33,251 is: 49,882.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,562.92 : 129,861.21 = 33,251 : x
  2. Step 2: Convert to fraction form
    86,562.92/129,861.21 = 33,251/x
  3. Step 3: Cross multiply
    86,562.92x = 129,861.21 × 33,251
  4. Step 4: Simplify right side
    86,562.92x = 4,318,015,093.71
  5. Step 5: Solve for x
    x = 4,318,015,093.71/86,562.92
  6. Step 6: Final answer
    x = 49,882.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.