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Finding the Fourth Proportional to 8,758.88, 12,087.25 and 6,245.37

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Solution

The fourth proportional to 8,758.88, 12,087.25 and 6,245.37 is: 8,618.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.88 : 12,087.25 = 6,245.37 : x
  2. Step 2: Convert to fraction form
    8,758.88/12,087.25 = 6,245.37/x
  3. Step 3: Cross multiply
    8,758.88x = 12,087.25 × 6,245.37
  4. Step 4: Simplify right side
    8,758.88x = 75,489,348.53
  5. Step 5: Solve for x
    x = 75,489,348.53/8,758.88
  6. Step 6: Final answer
    x = 8,618.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.