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Finding the Third Proportional to 2,133.84 and 3,321.84

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Solution

The third proportional to 2,133.84 and 3,321.84 is: 5,171.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.84 : 3,321.84 = 3,321.84 : x
  2. Step 2: Convert to fraction form
    2,133.84/3,321.84 = 3,321.84/x
  3. Step 3: Cross multiply
    2,133.84x = 3,321.84 × 3,321.84
  4. Step 4: Simplify right side
    2,133.84x = 11,034,645.90
  5. Step 5: Solve for x
    x = 11,034,645.90/2,133.84
  6. Step 6: Final answer
    x = 5,171.25

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.