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Finding the Third Proportional to 3,298 and 5,221.50

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Solution

The third proportional to 3,298 and 5,221.50 is: 8,266.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,298 : 5,221.50 = 5,221.50 : x
  2. Step 2: Convert to fraction form
    3,298/5,221.50 = 5,221.50/x
  3. Step 3: Cross multiply
    3,298x = 5,221.50 × 5,221.50
  4. Step 4: Simplify right side
    3,298x = 27,264,062.25
  5. Step 5: Solve for x
    x = 27,264,062.25/3,298
  6. Step 6: Final answer
    x = 8,266.85

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.