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Finding the Fourth Proportional to 8,806.78, 13,211.39 and 2,962.02

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Solution

The fourth proportional to 8,806.78, 13,211.39 and 2,962.02 is: 4,443.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806.78 : 13,211.39 = 2,962.02 : x
  2. Step 2: Convert to fraction form
    8,806.78/13,211.39 = 2,962.02/x
  3. Step 3: Cross multiply
    8,806.78x = 13,211.39 × 2,962.02
  4. Step 4: Simplify right side
    8,806.78x = 39,132,401.41
  5. Step 5: Solve for x
    x = 39,132,401.41/8,806.78
  6. Step 6: Final answer
    x = 4,443.44

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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.