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Finding the Third Proportional to 1,646 and 3,562

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Solution

The third proportional to 1,646 and 3,562 is: 7,708.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646 : 3,562 = 3,562 : x
  2. Step 2: Convert to fraction form
    1,646/3,562 = 3,562/x
  3. Step 3: Cross multiply
    1,646x = 3,562 × 3,562
  4. Step 4: Simplify right side
    1,646x = 12,687,844
  5. Step 5: Solve for x
    x = 12,687,844/1,646
  6. Step 6: Final answer
    x = 7,708.29

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.