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Finding the Fourth Proportional to 8,167.75, 12,251.69 and 2,011.75

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Solution

The fourth proportional to 8,167.75, 12,251.69 and 2,011.75 is: 3,017.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167.75 : 12,251.69 = 2,011.75 : x
  2. Step 2: Convert to fraction form
    8,167.75/12,251.69 = 2,011.75/x
  3. Step 3: Cross multiply
    8,167.75x = 12,251.69 × 2,011.75
  4. Step 4: Simplify right side
    8,167.75x = 24,647,337.36
  5. Step 5: Solve for x
    x = 24,647,337.36/8,167.75
  6. Step 6: Final answer
    x = 3,017.64

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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.