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Finding the Fourth Proportional to 8,819.69, 12,171.21 and 4,841.24

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Solution

The fourth proportional to 8,819.69, 12,171.21 and 4,841.24 is: 6,680.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.69 : 12,171.21 = 4,841.24 : x
  2. Step 2: Convert to fraction form
    8,819.69/12,171.21 = 4,841.24/x
  3. Step 3: Cross multiply
    8,819.69x = 12,171.21 × 4,841.24
  4. Step 4: Simplify right side
    8,819.69x = 58,923,748.70
  5. Step 5: Solve for x
    x = 58,923,748.70/8,819.69
  6. Step 6: Final answer
    x = 6,680.93

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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.