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Finding the Third Proportional to 20,745 and 32,175

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Solution

The third proportional to 20,745 and 32,175 is: 49,902.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,745 : 32,175 = 32,175 : x
  2. Step 2: Convert to fraction form
    20,745/32,175 = 32,175/x
  3. Step 3: Cross multiply
    20,745x = 32,175 × 32,175
  4. Step 4: Simplify right side
    20,745x = 1,035,230,625
  5. Step 5: Solve for x
    x = 1,035,230,625/20,745
  6. Step 6: Final answer
    x = 49,902.66

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.