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Finding the Third Proportional to 47,961 and 71,942

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Solution

The third proportional to 47,961 and 71,942 is: 107,913.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,961 : 71,942 = 71,942 : x
  2. Step 2: Convert to fraction form
    47,961/71,942 = 71,942/x
  3. Step 3: Cross multiply
    47,961x = 71,942 × 71,942
  4. Step 4: Simplify right side
    47,961x = 5,175,651,364
  5. Step 5: Solve for x
    x = 5,175,651,364/47,961
  6. Step 6: Final answer
    x = 107,913.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.