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Finding the Fourth Proportional to 8,298.54, 12,449.30 and 2,750.85

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Solution

The fourth proportional to 8,298.54, 12,449.30 and 2,750.85 is: 4,126.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,298.54 : 12,449.30 = 2,750.85 : x
  2. Step 2: Convert to fraction form
    8,298.54/12,449.30 = 2,750.85/x
  3. Step 3: Cross multiply
    8,298.54x = 12,449.30 × 2,750.85
  4. Step 4: Simplify right side
    8,298.54x = 34,246,143.15
  5. Step 5: Solve for x
    x = 34,246,143.15/8,298.54
  6. Step 6: Final answer
    x = 4,126.77

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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.