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Finding the Fourth Proportional to 8,817.96, 13,227.18 and 2,578.68

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Solution

The fourth proportional to 8,817.96, 13,227.18 and 2,578.68 is: 3,868.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,817.96 : 13,227.18 = 2,578.68 : x
  2. Step 2: Convert to fraction form
    8,817.96/13,227.18 = 2,578.68/x
  3. Step 3: Cross multiply
    8,817.96x = 13,227.18 × 2,578.68
  4. Step 4: Simplify right side
    8,817.96x = 34,108,664.52
  5. Step 5: Solve for x
    x = 34,108,664.52/8,817.96
  6. Step 6: Final answer
    x = 3,868.09

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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.