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Finding the Fourth Proportional to 18,614.16, 25,691.96 and 10,660.96

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Solution

The fourth proportional to 18,614.16, 25,691.96 and 10,660.96 is: 14,714.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,614.16 : 25,691.96 = 10,660.96 : x
  2. Step 2: Convert to fraction form
    18,614.16/25,691.96 = 10,660.96/x
  3. Step 3: Cross multiply
    18,614.16x = 25,691.96 × 10,660.96
  4. Step 4: Simplify right side
    18,614.16x = 273,900,957.88
  5. Step 5: Solve for x
    x = 273,900,957.88/18,614.16
  6. Step 6: Final answer
    x = 14,714.66

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1.5x scale

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.