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Finding the Fourth Proportional to 41,940.81, 62,922.11 and 15,645.75

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Solution

The fourth proportional to 41,940.81, 62,922.11 and 15,645.75 is: 23,472.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,940.81 : 62,922.11 = 15,645.75 : x
  2. Step 2: Convert to fraction form
    41,940.81/62,922.11 = 15,645.75/x
  3. Step 3: Cross multiply
    41,940.81x = 62,922.11 × 15,645.75
  4. Step 4: Simplify right side
    41,940.81x = 984,463,524.30
  5. Step 5: Solve for x
    x = 984,463,524.30/41,940.81
  6. Step 6: Final answer
    x = 23,472.69

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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.