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Finding the Third Proportional to 20,131 and 47,368

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Solution

The third proportional to 20,131 and 47,368 is: 111,456.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131 : 47,368 = 47,368 : x
  2. Step 2: Convert to fraction form
    20,131/47,368 = 47,368/x
  3. Step 3: Cross multiply
    20,131x = 47,368 × 47,368
  4. Step 4: Simplify right side
    20,131x = 2,243,727,424
  5. Step 5: Solve for x
    x = 2,243,727,424/20,131
  6. Step 6: Final answer
    x = 111,456.33

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.