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Finding the Fourth Proportional to 8,847.70, 12,222.20 and 8,049.60

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Solution

The fourth proportional to 8,847.70, 12,222.20 and 8,049.60 is: 11,119.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,847.70 : 12,222.20 = 8,049.60 : x
  2. Step 2: Convert to fraction form
    8,847.70/12,222.20 = 8,049.60/x
  3. Step 3: Cross multiply
    8,847.70x = 12,222.20 × 8,049.60
  4. Step 4: Simplify right side
    8,847.70x = 98,383,841.24
  5. Step 5: Solve for x
    x = 98,383,841.24/8,847.70
  6. Step 6: Final answer
    x = 11,119.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.