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Finding the Fourth Proportional to 7,251.88, 10,920.79 and 6,338.44

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Solution

The fourth proportional to 7,251.88, 10,920.79 and 6,338.44 is: 9,545.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,251.88 : 10,920.79 = 6,338.44 : x
  2. Step 2: Convert to fraction form
    7,251.88/10,920.79 = 6,338.44/x
  3. Step 3: Cross multiply
    7,251.88x = 10,920.79 × 6,338.44
  4. Step 4: Simplify right side
    7,251.88x = 69,220,772.17
  5. Step 5: Solve for x
    x = 69,220,772.17/7,251.88
  6. Step 6: Final answer
    x = 9,545.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.