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Finding the Third Proportional to 1,961 and 4,150

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Solution

The third proportional to 1,961 and 4,150 is: 8,782.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961 : 4,150 = 4,150 : x
  2. Step 2: Convert to fraction form
    1,961/4,150 = 4,150/x
  3. Step 3: Cross multiply
    1,961x = 4,150 × 4,150
  4. Step 4: Simplify right side
    1,961x = 17,222,500
  5. Step 5: Solve for x
    x = 17,222,500/1,961
  6. Step 6: Final answer
    x = 8,782.51

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.