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Finding the Third Proportional to 1,231 and 2,641

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Solution

The third proportional to 1,231 and 2,641 is: 5,666.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231 : 2,641 = 2,641 : x
  2. Step 2: Convert to fraction form
    1,231/2,641 = 2,641/x
  3. Step 3: Cross multiply
    1,231x = 2,641 × 2,641
  4. Step 4: Simplify right side
    1,231x = 6,974,881
  5. Step 5: Solve for x
    x = 6,974,881/1,231
  6. Step 6: Final answer
    x = 5,666.03

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.