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Finding the Fourth Proportional to 16,600.43, 22,931.03 and 13,266.61

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Solution

The fourth proportional to 16,600.43, 22,931.03 and 13,266.61 is: 18,325.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,600.43 : 22,931.03 = 13,266.61 : x
  2. Step 2: Convert to fraction form
    16,600.43/22,931.03 = 13,266.61/x
  3. Step 3: Cross multiply
    16,600.43x = 22,931.03 × 13,266.61
  4. Step 4: Simplify right side
    16,600.43x = 304,217,031.91
  5. Step 5: Solve for x
    x = 304,217,031.91/16,600.43
  6. Step 6: Final answer
    x = 18,325.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.