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Finding the Fourth Proportional to 8,263.92, 12,452.76 and 6,835.20

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Solution

The fourth proportional to 8,263.92, 12,452.76 and 6,835.20 is: 10,299.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,263.92 : 12,452.76 = 6,835.20 : x
  2. Step 2: Convert to fraction form
    8,263.92/12,452.76 = 6,835.20/x
  3. Step 3: Cross multiply
    8,263.92x = 12,452.76 × 6,835.20
  4. Step 4: Simplify right side
    8,263.92x = 85,117,105.15
  5. Step 5: Solve for x
    x = 85,117,105.15/8,263.92
  6. Step 6: Final answer
    x = 10,299.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.