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Finding the Third Proportional to 605.25 and 1,347

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Solution

The third proportional to 605.25 and 1,347 is: 2,997.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.25 : 1,347 = 1,347 : x
  2. Step 2: Convert to fraction form
    605.25/1,347 = 1,347/x
  3. Step 3: Cross multiply
    605.25x = 1,347 × 1,347
  4. Step 4: Simplify right side
    605.25x = 1,814,409
  5. Step 5: Solve for x
    x = 1,814,409/605.25
  6. Step 6: Final answer
    x = 2,997.78

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.