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Finding the Third Proportional to 986 and 1,933

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Solution

The third proportional to 986 and 1,933 is: 3,789.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    986 : 1,933 = 1,933 : x
  2. Step 2: Convert to fraction form
    986/1,933 = 1,933/x
  3. Step 3: Cross multiply
    986x = 1,933 × 1,933
  4. Step 4: Simplify right side
    986x = 3,736,489
  5. Step 5: Solve for x
    x = 3,736,489/986
  6. Step 6: Final answer
    x = 3,789.54

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Why These Related Problems?

These problems maintain the same ratio (1.96) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.