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Finding the Third Proportional to 3,324 and 5,221.50

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Solution

The third proportional to 3,324 and 5,221.50 is: 8,202.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,324 : 5,221.50 = 5,221.50 : x
  2. Step 2: Convert to fraction form
    3,324/5,221.50 = 5,221.50/x
  3. Step 3: Cross multiply
    3,324x = 5,221.50 × 5,221.50
  4. Step 4: Simplify right side
    3,324x = 27,264,062.25
  5. Step 5: Solve for x
    x = 27,264,062.25/3,324
  6. Step 6: Final answer
    x = 8,202.18

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.