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Finding the Fourth Proportional to 8,819.04, 12,169.20 and 5,233.44

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Solution

The fourth proportional to 8,819.04, 12,169.20 and 5,233.44 is: 7,221.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.04 : 12,169.20 = 5,233.44 : x
  2. Step 2: Convert to fraction form
    8,819.04/12,169.20 = 5,233.44/x
  3. Step 3: Cross multiply
    8,819.04x = 12,169.20 × 5,233.44
  4. Step 4: Simplify right side
    8,819.04x = 63,686,778.05
  5. Step 5: Solve for x
    x = 63,686,778.05/8,819.04
  6. Step 6: Final answer
    x = 7,221.51

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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.