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Finding the Fourth Proportional to 41,505.40, 62,249.80 and 11,916.30

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Solution

The fourth proportional to 41,505.40, 62,249.80 and 11,916.30 is: 17,872.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,505.40 : 62,249.80 = 11,916.30 : x
  2. Step 2: Convert to fraction form
    41,505.40/62,249.80 = 11,916.30/x
  3. Step 3: Cross multiply
    41,505.40x = 62,249.80 × 11,916.30
  4. Step 4: Simplify right side
    41,505.40x = 741,787,291.74
  5. Step 5: Solve for x
    x = 741,787,291.74/41,505.40
  6. Step 6: Final answer
    x = 17,872.07

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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.