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Finding the Third Proportional to 21,992 and 31,336

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Solution

The third proportional to 21,992 and 31,336 is: 44,650.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,992 : 31,336 = 31,336 : x
  2. Step 2: Convert to fraction form
    21,992/31,336 = 31,336/x
  3. Step 3: Cross multiply
    21,992x = 31,336 × 31,336
  4. Step 4: Simplify right side
    21,992x = 981,944,896
  5. Step 5: Solve for x
    x = 981,944,896/21,992
  6. Step 6: Final answer
    x = 44,650.10

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These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.