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Finding the Third Proportional to 52,707.50 and 81,525

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Solution

The third proportional to 52,707.50 and 81,525 is: 126,098.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,707.50 : 81,525 = 81,525 : x
  2. Step 2: Convert to fraction form
    52,707.50/81,525 = 81,525/x
  3. Step 3: Cross multiply
    52,707.50x = 81,525 × 81,525
  4. Step 4: Simplify right side
    52,707.50x = 6,646,325,625
  5. Step 5: Solve for x
    x = 6,646,325,625/52,707.50
  6. Step 6: Final answer
    x = 126,098.29

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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.