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Finding the Third Proportional to 29,691 and 70,956

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Solution

The third proportional to 29,691 and 70,956 is: 169,571.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,691 : 70,956 = 70,956 : x
  2. Step 2: Convert to fraction form
    29,691/70,956 = 70,956/x
  3. Step 3: Cross multiply
    29,691x = 70,956 × 70,956
  4. Step 4: Simplify right side
    29,691x = 5,034,753,936
  5. Step 5: Solve for x
    x = 5,034,753,936/29,691
  6. Step 6: Final answer
    x = 169,571.72

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.