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Finding the Third Proportional to 1,191 and 2,634

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Solution

The third proportional to 1,191 and 2,634 is: 5,825.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191 : 2,634 = 2,634 : x
  2. Step 2: Convert to fraction form
    1,191/2,634 = 2,634/x
  3. Step 3: Cross multiply
    1,191x = 2,634 × 2,634
  4. Step 4: Simplify right side
    1,191x = 6,937,956
  5. Step 5: Solve for x
    x = 6,937,956/1,191
  6. Step 6: Final answer
    x = 5,825.32

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.