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Finding the Fourth Proportional to 12,241.80, 18,353.73 and 3,917.04

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Solution

The fourth proportional to 12,241.80, 18,353.73 and 3,917.04 is: 5,872.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,241.80 : 18,353.73 = 3,917.04 : x
  2. Step 2: Convert to fraction form
    12,241.80/18,353.73 = 3,917.04/x
  3. Step 3: Cross multiply
    12,241.80x = 18,353.73 × 3,917.04
  4. Step 4: Simplify right side
    12,241.80x = 71,892,294.56
  5. Step 5: Solve for x
    x = 71,892,294.56/12,241.80
  6. Step 6: Final answer
    x = 5,872.69

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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.