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Finding the Third Proportional to 20,993 and 45,838

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Solution

The third proportional to 20,993 and 45,838 is: 100,086.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,993 : 45,838 = 45,838 : x
  2. Step 2: Convert to fraction form
    20,993/45,838 = 45,838/x
  3. Step 3: Cross multiply
    20,993x = 45,838 × 45,838
  4. Step 4: Simplify right side
    20,993x = 2,101,122,244
  5. Step 5: Solve for x
    x = 2,101,122,244/20,993
  6. Step 6: Final answer
    x = 100,086.80

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.