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Finding the Fourth Proportional to 41,628.06, 62,486.10 and 40,687.92

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Solution

The fourth proportional to 41,628.06, 62,486.10 and 40,687.92 is: 61,074.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,628.06 : 62,486.10 = 40,687.92 : x
  2. Step 2: Convert to fraction form
    41,628.06/62,486.10 = 40,687.92/x
  3. Step 3: Cross multiply
    41,628.06x = 62,486.10 × 40,687.92
  4. Step 4: Simplify right side
    41,628.06x = 2,542,429,437.91
  5. Step 5: Solve for x
    x = 2,542,429,437.91/41,628.06
  6. Step 6: Final answer
    x = 61,074.90

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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.