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Finding the Fourth Proportional to 18,408.92, 27,594.24 and 8,540.06

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Solution

The fourth proportional to 18,408.92, 27,594.24 and 8,540.06 is: 12,801.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,408.92 : 27,594.24 = 8,540.06 : x
  2. Step 2: Convert to fraction form
    18,408.92/27,594.24 = 8,540.06/x
  3. Step 3: Cross multiply
    18,408.92x = 27,594.24 × 8,540.06
  4. Step 4: Simplify right side
    18,408.92x = 235,656,465.25
  5. Step 5: Solve for x
    x = 235,656,465.25/18,408.92
  6. Step 6: Final answer
    x = 12,801.21

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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.