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Finding the Third Proportional to 20,466 and 31,293

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Solution

The third proportional to 20,466 and 31,293 is: 47,847.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466 : 31,293 = 31,293 : x
  2. Step 2: Convert to fraction form
    20,466/31,293 = 31,293/x
  3. Step 3: Cross multiply
    20,466x = 31,293 × 31,293
  4. Step 4: Simplify right side
    20,466x = 979,251,849
  5. Step 5: Solve for x
    x = 979,251,849/20,466
  6. Step 6: Final answer
    x = 47,847.74

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.