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Finding the Third Proportional to 1,222 and 3,298

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Solution

The third proportional to 1,222 and 3,298 is: 8,900.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222 : 3,298 = 3,298 : x
  2. Step 2: Convert to fraction form
    1,222/3,298 = 3,298/x
  3. Step 3: Cross multiply
    1,222x = 3,298 × 3,298
  4. Step 4: Simplify right side
    1,222x = 10,876,804
  5. Step 5: Solve for x
    x = 10,876,804/1,222
  6. Step 6: Final answer
    x = 8,900.82

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Why These Related Problems?

These problems maintain the same ratio (2.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.