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Finding the Third Proportional to 20,340 and 47,518

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Solution

The third proportional to 20,340 and 47,518 is: 111,010.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,340 : 47,518 = 47,518 : x
  2. Step 2: Convert to fraction form
    20,340/47,518 = 47,518/x
  3. Step 3: Cross multiply
    20,340x = 47,518 × 47,518
  4. Step 4: Simplify right side
    20,340x = 2,257,960,324
  5. Step 5: Solve for x
    x = 2,257,960,324/20,340
  6. Step 6: Final answer
    x = 111,010.83

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.