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Finding the Fourth Proportional to 41,207.20, 61,807.20 and 13,505.20

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Solution

The fourth proportional to 41,207.20, 61,807.20 and 13,505.20 is: 20,256.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,207.20 : 61,807.20 = 13,505.20 : x
  2. Step 2: Convert to fraction form
    41,207.20/61,807.20 = 13,505.20/x
  3. Step 3: Cross multiply
    41,207.20x = 61,807.20 × 13,505.20
  4. Step 4: Simplify right side
    41,207.20x = 834,718,597.44
  5. Step 5: Solve for x
    x = 834,718,597.44/41,207.20
  6. Step 6: Final answer
    x = 20,256.62

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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.