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Finding the Third Proportional to 361 and 862.50

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Solution

The third proportional to 361 and 862.50 is: 2,060.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    361 : 862.50 = 862.50 : x
  2. Step 2: Convert to fraction form
    361/862.50 = 862.50/x
  3. Step 3: Cross multiply
    361x = 862.50 × 862.50
  4. Step 4: Simplify right side
    361x = 743,906.25
  5. Step 5: Solve for x
    x = 743,906.25/361
  6. Step 6: Final answer
    x = 2,060.68

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.