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Finding the Third Proportional to 60,835.50 and 81,375

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Solution

The third proportional to 60,835.50 and 81,375 is: 108,849.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,835.50 : 81,375 = 81,375 : x
  2. Step 2: Convert to fraction form
    60,835.50/81,375 = 81,375/x
  3. Step 3: Cross multiply
    60,835.50x = 81,375 × 81,375
  4. Step 4: Simplify right side
    60,835.50x = 6,621,890,625
  5. Step 5: Solve for x
    x = 6,621,890,625/60,835.50
  6. Step 6: Final answer
    x = 108,849.12

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.