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Finding the Third Proportional to 3,764 and 5,115

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Solution

The third proportional to 3,764 and 5,115 is: 6,950.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,764 : 5,115 = 5,115 : x
  2. Step 2: Convert to fraction form
    3,764/5,115 = 5,115/x
  3. Step 3: Cross multiply
    3,764x = 5,115 × 5,115
  4. Step 4: Simplify right side
    3,764x = 26,163,225
  5. Step 5: Solve for x
    x = 26,163,225/3,764
  6. Step 6: Final answer
    x = 6,950.91

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.