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Finding the Fourth Proportional to 8,294.60, 12,442.77 and 3,910.88

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Solution

The fourth proportional to 8,294.60, 12,442.77 and 3,910.88 is: 5,866.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,294.60 : 12,442.77 = 3,910.88 : x
  2. Step 2: Convert to fraction form
    8,294.60/12,442.77 = 3,910.88/x
  3. Step 3: Cross multiply
    8,294.60x = 12,442.77 × 3,910.88
  4. Step 4: Simplify right side
    8,294.60x = 48,662,180.34
  5. Step 5: Solve for x
    x = 48,662,180.34/8,294.60
  6. Step 6: Final answer
    x = 5,866.73

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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.