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Finding the Fourth Proportional to 18,294.44, 27,454.12 and 8,433.80

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Solution

The fourth proportional to 18,294.44, 27,454.12 and 8,433.80 is: 12,656.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,294.44 : 27,454.12 = 8,433.80 : x
  2. Step 2: Convert to fraction form
    18,294.44/27,454.12 = 8,433.80/x
  3. Step 3: Cross multiply
    18,294.44x = 27,454.12 × 8,433.80
  4. Step 4: Simplify right side
    18,294.44x = 231,542,398.90
  5. Step 5: Solve for x
    x = 231,542,398.90/18,294.44
  6. Step 6: Final answer
    x = 12,656.44

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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.