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Finding the Fourth Proportional to 19,251.68, 28,877.11 and 8,863.43

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Solution

The fourth proportional to 19,251.68, 28,877.11 and 8,863.43 is: 13,294.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,251.68 : 28,877.11 = 8,863.43 : x
  2. Step 2: Convert to fraction form
    19,251.68/28,877.11 = 8,863.43/x
  3. Step 3: Cross multiply
    19,251.68x = 28,877.11 × 8,863.43
  4. Step 4: Simplify right side
    19,251.68x = 255,950,076.54
  5. Step 5: Solve for x
    x = 255,950,076.54/19,251.68
  6. Step 6: Final answer
    x = 13,294.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.