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Finding the Fourth Proportional to 8,591.20, 12,883.20 and 2,746.24

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Solution

The fourth proportional to 8,591.20, 12,883.20 and 2,746.24 is: 4,118.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,591.20 : 12,883.20 = 2,746.24 : x
  2. Step 2: Convert to fraction form
    8,591.20/12,883.20 = 2,746.24/x
  3. Step 3: Cross multiply
    8,591.20x = 12,883.20 × 2,746.24
  4. Step 4: Simplify right side
    8,591.20x = 35,380,359.17
  5. Step 5: Solve for x
    x = 35,380,359.17/8,591.20
  6. Step 6: Final answer
    x = 4,118.21

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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.