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Finding the Fourth Proportional to 8,363.25, 12,546.90 and 2,519.91

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Solution

The fourth proportional to 8,363.25, 12,546.90 and 2,519.91 is: 3,780.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,363.25 : 12,546.90 = 2,519.91 : x
  2. Step 2: Convert to fraction form
    8,363.25/12,546.90 = 2,519.91/x
  3. Step 3: Cross multiply
    8,363.25x = 12,546.90 × 2,519.91
  4. Step 4: Simplify right side
    8,363.25x = 31,617,058.78
  5. Step 5: Solve for x
    x = 31,617,058.78/8,363.25
  6. Step 6: Final answer
    x = 3,780.48

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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.