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Finding the Fourth Proportional to 41,502.72, 62,253.84 and 11,920.68

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Solution

The fourth proportional to 41,502.72, 62,253.84 and 11,920.68 is: 17,880.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,502.72 : 62,253.84 = 11,920.68 : x
  2. Step 2: Convert to fraction form
    41,502.72/62,253.84 = 11,920.68/x
  3. Step 3: Cross multiply
    41,502.72x = 62,253.84 × 11,920.68
  4. Step 4: Simplify right side
    41,502.72x = 742,108,105.41
  5. Step 5: Solve for x
    x = 742,108,105.41/41,502.72
  6. Step 6: Final answer
    x = 17,880.95

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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.