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Finding the Fourth Proportional to 8,410.62, 12,625.50 and 4,255.32

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Solution

The fourth proportional to 8,410.62, 12,625.50 and 4,255.32 is: 6,387.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,410.62 : 12,625.50 = 4,255.32 : x
  2. Step 2: Convert to fraction form
    8,410.62/12,625.50 = 4,255.32/x
  3. Step 3: Cross multiply
    8,410.62x = 12,625.50 × 4,255.32
  4. Step 4: Simplify right side
    8,410.62x = 53,725,542.66
  5. Step 5: Solve for x
    x = 53,725,542.66/8,410.62
  6. Step 6: Final answer
    x = 6,387.82

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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.