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Finding the Fourth Proportional to 18,974.27, 26,183.80 and 10,476.20

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Solution

The fourth proportional to 18,974.27, 26,183.80 and 10,476.20 is: 14,456.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,974.27 : 26,183.80 = 10,476.20 : x
  2. Step 2: Convert to fraction form
    18,974.27/26,183.80 = 10,476.20/x
  3. Step 3: Cross multiply
    18,974.27x = 26,183.80 × 10,476.20
  4. Step 4: Simplify right side
    18,974.27x = 274,306,764.83
  5. Step 5: Solve for x
    x = 274,306,764.83/18,974.27
  6. Step 6: Final answer
    x = 14,456.78

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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.