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Finding the Third Proportional to 5,543 and 12,209

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Solution

The third proportional to 5,543 and 12,209 is: 26,891.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,543 : 12,209 = 12,209 : x
  2. Step 2: Convert to fraction form
    5,543/12,209 = 12,209/x
  3. Step 3: Cross multiply
    5,543x = 12,209 × 12,209
  4. Step 4: Simplify right side
    5,543x = 149,059,681
  5. Step 5: Solve for x
    x = 149,059,681/5,543
  6. Step 6: Final answer
    x = 26,891.52

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.