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Finding the Fourth Proportional to 22,822.90, 34,249.03 and 11,129.74

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Solution

The fourth proportional to 22,822.90, 34,249.03 and 11,129.74 is: 16,701.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,822.90 : 34,249.03 = 11,129.74 : x
  2. Step 2: Convert to fraction form
    22,822.90/34,249.03 = 11,129.74/x
  3. Step 3: Cross multiply
    22,822.90x = 34,249.03 × 11,129.74
  4. Step 4: Simplify right side
    22,822.90x = 381,182,685.71
  5. Step 5: Solve for x
    x = 381,182,685.71/22,822.90
  6. Step 6: Final answer
    x = 16,701.77

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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.