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Finding the Fourth Proportional to 22,713.13, 34,031.89 and 7,913.89

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Solution

The fourth proportional to 22,713.13, 34,031.89 and 7,913.89 is: 11,857.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,713.13 : 34,031.89 = 7,913.89 : x
  2. Step 2: Convert to fraction form
    22,713.13/34,031.89 = 7,913.89/x
  3. Step 3: Cross multiply
    22,713.13x = 34,031.89 × 7,913.89
  4. Step 4: Simplify right side
    22,713.13x = 269,324,633.95
  5. Step 5: Solve for x
    x = 269,324,633.95/22,713.13
  6. Step 6: Final answer
    x = 11,857.66

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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.