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Finding the Fourth Proportional to 8,248.90, 12,375.18 and 4,091.17

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Solution

The fourth proportional to 8,248.90, 12,375.18 and 4,091.17 is: 6,137.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,248.90 : 12,375.18 = 4,091.17 : x
  2. Step 2: Convert to fraction form
    8,248.90/12,375.18 = 4,091.17/x
  3. Step 3: Cross multiply
    8,248.90x = 12,375.18 × 4,091.17
  4. Step 4: Simplify right side
    8,248.90x = 50,628,965.16
  5. Step 5: Solve for x
    x = 50,628,965.16/8,248.90
  6. Step 6: Final answer
    x = 6,137.66

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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.