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Finding the Fourth Proportional to 8,367.44, 12,542.99 and 3,983.72

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Solution

The fourth proportional to 8,367.44, 12,542.99 and 3,983.72 is: 5,971.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,367.44 : 12,542.99 = 3,983.72 : x
  2. Step 2: Convert to fraction form
    8,367.44/12,542.99 = 3,983.72/x
  3. Step 3: Cross multiply
    8,367.44x = 12,542.99 × 3,983.72
  4. Step 4: Simplify right side
    8,367.44x = 49,967,697.41
  5. Step 5: Solve for x
    x = 49,967,697.41/8,367.44
  6. Step 6: Final answer
    x = 5,971.69

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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.