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Finding the Fourth Proportional to 8,007.10, 12,011.29 and 2,163.62

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Solution

The fourth proportional to 8,007.10, 12,011.29 and 2,163.62 is: 3,245.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,007.10 : 12,011.29 = 2,163.62 : x
  2. Step 2: Convert to fraction form
    8,007.10/12,011.29 = 2,163.62/x
  3. Step 3: Cross multiply
    8,007.10x = 12,011.29 × 2,163.62
  4. Step 4: Simplify right side
    8,007.10x = 25,987,891.89
  5. Step 5: Solve for x
    x = 25,987,891.89/8,007.10
  6. Step 6: Final answer
    x = 3,245.61

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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.