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Finding the Third Proportional to 1,932 and 2,118

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Solution

The third proportional to 1,932 and 2,118 is: 2,321.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,932 : 2,118 = 2,118 : x
  2. Step 2: Convert to fraction form
    1,932/2,118 = 2,118/x
  3. Step 3: Cross multiply
    1,932x = 2,118 × 2,118
  4. Step 4: Simplify right side
    1,932x = 4,485,924
  5. Step 5: Solve for x
    x = 4,485,924/1,932
  6. Step 6: Final answer
    x = 2,321.91

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.