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Finding the Third Proportional to 5,491 and 8,494

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Solution

The third proportional to 5,491 and 8,494 is: 13,139.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491 : 8,494 = 8,494 : x
  2. Step 2: Convert to fraction form
    5,491/8,494 = 8,494/x
  3. Step 3: Cross multiply
    5,491x = 8,494 × 8,494
  4. Step 4: Simplify right side
    5,491x = 72,148,036
  5. Step 5: Solve for x
    x = 72,148,036/5,491
  6. Step 6: Final answer
    x = 13,139.33

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.