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Finding the Fourth Proportional to 18,704.44, 25,815.34 and 17,863.66

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Solution

The fourth proportional to 18,704.44, 25,815.34 and 17,863.66 is: 24,654.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704.44 : 25,815.34 = 17,863.66 : x
  2. Step 2: Convert to fraction form
    18,704.44/25,815.34 = 17,863.66/x
  3. Step 3: Cross multiply
    18,704.44x = 25,815.34 × 17,863.66
  4. Step 4: Simplify right side
    18,704.44x = 461,156,456.54
  5. Step 5: Solve for x
    x = 461,156,456.54/18,704.44
  6. Step 6: Final answer
    x = 24,654.92

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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.