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Finding the Fourth Proportional to 19,408.52, 29,092.02 and 10,039.11

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Solution

The fourth proportional to 19,408.52, 29,092.02 and 10,039.11 is: 15,047.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,408.52 : 29,092.02 = 10,039.11 : x
  2. Step 2: Convert to fraction form
    19,408.52/29,092.02 = 10,039.11/x
  3. Step 3: Cross multiply
    19,408.52x = 29,092.02 × 10,039.11
  4. Step 4: Simplify right side
    19,408.52x = 292,057,842.16
  5. Step 5: Solve for x
    x = 292,057,842.16/19,408.52
  6. Step 6: Final answer
    x = 15,047.92

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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.