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Finding the Third Proportional to 30,890 and 41,367

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Solution

The third proportional to 30,890 and 41,367 is: 55,397.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,890 : 41,367 = 41,367 : x
  2. Step 2: Convert to fraction form
    30,890/41,367 = 41,367/x
  3. Step 3: Cross multiply
    30,890x = 41,367 × 41,367
  4. Step 4: Simplify right side
    30,890x = 1,711,228,689
  5. Step 5: Solve for x
    x = 1,711,228,689/30,890
  6. Step 6: Final answer
    x = 55,397.50

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.