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Finding the Third Proportional to 5,494 and 12,220

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Solution

The third proportional to 5,494 and 12,220 is: 27,180.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,494 : 12,220 = 12,220 : x
  2. Step 2: Convert to fraction form
    5,494/12,220 = 12,220/x
  3. Step 3: Cross multiply
    5,494x = 12,220 × 12,220
  4. Step 4: Simplify right side
    5,494x = 149,328,400
  5. Step 5: Solve for x
    x = 149,328,400/5,494
  6. Step 6: Final answer
    x = 27,180.27

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.