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Finding the Third Proportional to 3,648 and 7,134

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Solution

The third proportional to 3,648 and 7,134 is: 13,951.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,648 : 7,134 = 7,134 : x
  2. Step 2: Convert to fraction form
    3,648/7,134 = 7,134/x
  3. Step 3: Cross multiply
    3,648x = 7,134 × 7,134
  4. Step 4: Simplify right side
    3,648x = 50,893,956
  5. Step 5: Solve for x
    x = 50,893,956/3,648
  6. Step 6: Final answer
    x = 13,951.19

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Why These Related Problems?

These problems maintain the same ratio (1.96) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.