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Finding the Fourth Proportional to 18,614.53, 25,714.20 and 16,932.97

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Solution

The fourth proportional to 18,614.53, 25,714.20 and 16,932.97 is: 23,391.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,614.53 : 25,714.20 = 16,932.97 : x
  2. Step 2: Convert to fraction form
    18,614.53/25,714.20 = 16,932.97/x
  3. Step 3: Cross multiply
    18,614.53x = 25,714.20 × 16,932.97
  4. Step 4: Simplify right side
    18,614.53x = 435,417,777.17
  5. Step 5: Solve for x
    x = 435,417,777.17/18,614.53
  6. Step 6: Final answer
    x = 23,391.29

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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.