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Finding the Fourth Proportional to 8,367.62, 12,478.31 and 7,332.44

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Solution

The fourth proportional to 8,367.62, 12,478.31 and 7,332.44 is: 10,934.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,367.62 : 12,478.31 = 7,332.44 : x
  2. Step 2: Convert to fraction form
    8,367.62/12,478.31 = 7,332.44/x
  3. Step 3: Cross multiply
    8,367.62x = 12,478.31 × 7,332.44
  4. Step 4: Simplify right side
    8,367.62x = 91,496,459.38
  5. Step 5: Solve for x
    x = 91,496,459.38/8,367.62
  6. Step 6: Final answer
    x = 10,934.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.