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Finding the Third Proportional to 2,666 and 7,223

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Solution

The third proportional to 2,666 and 7,223 is: 19,569.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666 : 7,223 = 7,223 : x
  2. Step 2: Convert to fraction form
    2,666/7,223 = 7,223/x
  3. Step 3: Cross multiply
    2,666x = 7,223 × 7,223
  4. Step 4: Simplify right side
    2,666x = 52,171,729
  5. Step 5: Solve for x
    x = 52,171,729/2,666
  6. Step 6: Final answer
    x = 19,569.29

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Why These Related Problems?

These problems maintain the same ratio (2.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.