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Finding the Fourth Proportional to 8,025.60, 12,031.92 and 7,377.60

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Solution

The fourth proportional to 8,025.60, 12,031.92 and 7,377.60 is: 11,060.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,025.60 : 12,031.92 = 7,377.60 : x
  2. Step 2: Convert to fraction form
    8,025.60/12,031.92 = 7,377.60/x
  3. Step 3: Cross multiply
    8,025.60x = 12,031.92 × 7,377.60
  4. Step 4: Simplify right side
    8,025.60x = 88,766,692.99
  5. Step 5: Solve for x
    x = 88,766,692.99/8,025.60
  6. Step 6: Final answer
    x = 11,060.44

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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.