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Finding the Fourth Proportional to 8,425.64, 12,628.21 and 5,961.17

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Solution

The fourth proportional to 8,425.64, 12,628.21 and 5,961.17 is: 8,934.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,425.64 : 12,628.21 = 5,961.17 : x
  2. Step 2: Convert to fraction form
    8,425.64/12,628.21 = 5,961.17/x
  3. Step 3: Cross multiply
    8,425.64x = 12,628.21 × 5,961.17
  4. Step 4: Simplify right side
    8,425.64x = 75,278,906.61
  5. Step 5: Solve for x
    x = 75,278,906.61/8,425.64
  6. Step 6: Final answer
    x = 8,934.50

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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.