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Finding the Fourth Proportional to 19,401.72, 29,105.28 and 6,249.66

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Solution

The fourth proportional to 19,401.72, 29,105.28 and 6,249.66 is: 9,375.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,401.72 : 29,105.28 = 6,249.66 : x
  2. Step 2: Convert to fraction form
    19,401.72/29,105.28 = 6,249.66/x
  3. Step 3: Cross multiply
    19,401.72x = 29,105.28 × 6,249.66
  4. Step 4: Simplify right side
    19,401.72x = 181,898,104.20
  5. Step 5: Solve for x
    x = 181,898,104.20/19,401.72
  6. Step 6: Final answer
    x = 9,375.36

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.