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Finding the Fourth Proportional to 18,377.85, 27,545.42 and 8,367.54

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Solution

The fourth proportional to 18,377.85, 27,545.42 and 8,367.54 is: 12,541.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,377.85 : 27,545.42 = 8,367.54 : x
  2. Step 2: Convert to fraction form
    18,377.85/27,545.42 = 8,367.54/x
  3. Step 3: Cross multiply
    18,377.85x = 27,545.42 × 8,367.54
  4. Step 4: Simplify right side
    18,377.85x = 230,487,403.67
  5. Step 5: Solve for x
    x = 230,487,403.67/18,377.85
  6. Step 6: Final answer
    x = 12,541.59

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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.