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Finding the Third Proportional to 1,956 and 3,228

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Solution

The third proportional to 1,956 and 3,228 is: 5,327.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956 : 3,228 = 3,228 : x
  2. Step 2: Convert to fraction form
    1,956/3,228 = 3,228/x
  3. Step 3: Cross multiply
    1,956x = 3,228 × 3,228
  4. Step 4: Simplify right side
    1,956x = 10,419,984
  5. Step 5: Solve for x
    x = 10,419,984/1,956
  6. Step 6: Final answer
    x = 5,327.19

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.