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Finding the Third Proportional to 1,988 and 3,334

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Solution

The third proportional to 1,988 and 3,334 is: 5,591.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988 : 3,334 = 3,334 : x
  2. Step 2: Convert to fraction form
    1,988/3,334 = 3,334/x
  3. Step 3: Cross multiply
    1,988x = 3,334 × 3,334
  4. Step 4: Simplify right side
    1,988x = 11,115,556
  5. Step 5: Solve for x
    x = 11,115,556/1,988
  6. Step 6: Final answer
    x = 5,591.33

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Why These Related Problems?

These problems maintain the same ratio (1.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.