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Finding the Fourth Proportional to 18,754.38, 25,882.61 and 10,799.19

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Solution

The fourth proportional to 18,754.38, 25,882.61 and 10,799.19 is: 14,903.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,754.38 : 25,882.61 = 10,799.19 : x
  2. Step 2: Convert to fraction form
    18,754.38/25,882.61 = 10,799.19/x
  3. Step 3: Cross multiply
    18,754.38x = 25,882.61 × 10,799.19
  4. Step 4: Simplify right side
    18,754.38x = 279,511,169.09
  5. Step 5: Solve for x
    x = 279,511,169.09/18,754.38
  6. Step 6: Final answer
    x = 14,903.78

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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.