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Finding the Third Proportional to 1,682 and 2,455

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Solution

The third proportional to 1,682 and 2,455 is: 3,583.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682 : 2,455 = 2,455 : x
  2. Step 2: Convert to fraction form
    1,682/2,455 = 2,455/x
  3. Step 3: Cross multiply
    1,682x = 2,455 × 2,455
  4. Step 4: Simplify right side
    1,682x = 6,027,025
  5. Step 5: Solve for x
    x = 6,027,025/1,682
  6. Step 6: Final answer
    x = 3,583.25

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.