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Finding the Third Proportional to 1,721 and 1,883

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Solution

The third proportional to 1,721 and 1,883 is: 2,060.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721 : 1,883 = 1,883 : x
  2. Step 2: Convert to fraction form
    1,721/1,883 = 1,883/x
  3. Step 3: Cross multiply
    1,721x = 1,883 × 1,883
  4. Step 4: Simplify right side
    1,721x = 3,545,689
  5. Step 5: Solve for x
    x = 3,545,689/1,721
  6. Step 6: Final answer
    x = 2,060.25

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.