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Finding the Fourth Proportional to 8,425.71, 12,628.31 and 5,961.24

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Solution

The fourth proportional to 8,425.71, 12,628.31 and 5,961.24 is: 8,934.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,425.71 : 12,628.31 = 5,961.24 : x
  2. Step 2: Convert to fraction form
    8,425.71/12,628.31 = 5,961.24/x
  3. Step 3: Cross multiply
    8,425.71x = 12,628.31 × 5,961.24
  4. Step 4: Simplify right side
    8,425.71x = 75,280,356.90
  5. Step 5: Solve for x
    x = 75,280,356.90/8,425.71
  6. Step 6: Final answer
    x = 8,934.60

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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.