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Finding the Third Proportional to 18,276.75 and 26,781.44

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Solution

The third proportional to 18,276.75 and 26,781.44 is: 39,243.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276.75 : 26,781.44 = 26,781.44 : x
  2. Step 2: Convert to fraction form
    18,276.75/26,781.44 = 26,781.44/x
  3. Step 3: Cross multiply
    18,276.75x = 26,781.44 × 26,781.44
  4. Step 4: Simplify right side
    18,276.75x = 717,245,394.57
  5. Step 5: Solve for x
    x = 717,245,394.57/18,276.75
  6. Step 6: Final answer
    x = 39,243.60

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.