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Finding the Third Proportional to 23,220 and 31,992

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Solution

The third proportional to 23,220 and 31,992 is: 44,077.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,220 : 31,992 = 31,992 : x
  2. Step 2: Convert to fraction form
    23,220/31,992 = 31,992/x
  3. Step 3: Cross multiply
    23,220x = 31,992 × 31,992
  4. Step 4: Simplify right side
    23,220x = 1,023,488,064
  5. Step 5: Solve for x
    x = 1,023,488,064/23,220
  6. Step 6: Final answer
    x = 44,077.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.