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Finding the Third Proportional to 5,129 and 5,543

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Solution

The third proportional to 5,129 and 5,543 is: 5,990.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129 : 5,543 = 5,543 : x
  2. Step 2: Convert to fraction form
    5,129/5,543 = 5,543/x
  3. Step 3: Cross multiply
    5,129x = 5,543 × 5,543
  4. Step 4: Simplify right side
    5,129x = 30,724,849
  5. Step 5: Solve for x
    x = 30,724,849/5,129
  6. Step 6: Final answer
    x = 5,990.42

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.