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Finding the Third Proportional to 1,646 and 3,813

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Solution

The third proportional to 1,646 and 3,813 is: 8,832.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646 : 3,813 = 3,813 : x
  2. Step 2: Convert to fraction form
    1,646/3,813 = 3,813/x
  3. Step 3: Cross multiply
    1,646x = 3,813 × 3,813
  4. Step 4: Simplify right side
    1,646x = 14,538,969
  5. Step 5: Solve for x
    x = 14,538,969/1,646
  6. Step 6: Final answer
    x = 8,832.91

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.