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Finding the Third Proportional to 1,722 and 2,503

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Solution

The third proportional to 1,722 and 2,503 is: 3,638.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722 : 2,503 = 2,503 : x
  2. Step 2: Convert to fraction form
    1,722/2,503 = 2,503/x
  3. Step 3: Cross multiply
    1,722x = 2,503 × 2,503
  4. Step 4: Simplify right side
    1,722x = 6,265,009
  5. Step 5: Solve for x
    x = 6,265,009/1,722
  6. Step 6: Final answer
    x = 3,638.22

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.