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Finding the Fourth Proportional to 18,169.92, 27,255.15 and 5,689.44

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Solution

The fourth proportional to 18,169.92, 27,255.15 and 5,689.44 is: 8,534.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,169.92 : 27,255.15 = 5,689.44 : x
  2. Step 2: Convert to fraction form
    18,169.92/27,255.15 = 5,689.44/x
  3. Step 3: Cross multiply
    18,169.92x = 27,255.15 × 5,689.44
  4. Step 4: Simplify right side
    18,169.92x = 155,066,540.62
  5. Step 5: Solve for x
    x = 155,066,540.62/18,169.92
  6. Step 6: Final answer
    x = 8,534.24

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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.