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Finding the Third Proportional to 19,517 and 41,992

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Solution

The third proportional to 19,517 and 41,992 is: 90,348.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,517 : 41,992 = 41,992 : x
  2. Step 2: Convert to fraction form
    19,517/41,992 = 41,992/x
  3. Step 3: Cross multiply
    19,517x = 41,992 × 41,992
  4. Step 4: Simplify right side
    19,517x = 1,763,328,064
  5. Step 5: Solve for x
    x = 1,763,328,064/19,517
  6. Step 6: Final answer
    x = 90,348.32

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.