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Finding the Third Proportional to 25,115.50 and 52,815

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Solution

The third proportional to 25,115.50 and 52,815 is: 111,063.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,115.50 : 52,815 = 52,815 : x
  2. Step 2: Convert to fraction form
    25,115.50/52,815 = 52,815/x
  3. Step 3: Cross multiply
    25,115.50x = 52,815 × 52,815
  4. Step 4: Simplify right side
    25,115.50x = 2,789,424,225
  5. Step 5: Solve for x
    x = 2,789,424,225/25,115.50
  6. Step 6: Final answer
    x = 111,063.85

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.