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Finding the Fourth Proportional to 8,367.43, 11,545.86 and 5,009.44

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Solution

The fourth proportional to 8,367.43, 11,545.86 and 5,009.44 is: 6,912.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,367.43 : 11,545.86 = 5,009.44 : x
  2. Step 2: Convert to fraction form
    8,367.43/11,545.86 = 5,009.44/x
  3. Step 3: Cross multiply
    8,367.43x = 11,545.86 × 5,009.44
  4. Step 4: Simplify right side
    8,367.43x = 57,838,267.87
  5. Step 5: Solve for x
    x = 57,838,267.87/8,367.43
  6. Step 6: Final answer
    x = 6,912.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.