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Finding the Third Proportional to 2,617 and 5,507

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Solution

The third proportional to 2,617 and 5,507 is: 11,588.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617 : 5,507 = 5,507 : x
  2. Step 2: Convert to fraction form
    2,617/5,507 = 5,507/x
  3. Step 3: Cross multiply
    2,617x = 5,507 × 5,507
  4. Step 4: Simplify right side
    2,617x = 30,327,049
  5. Step 5: Solve for x
    x = 30,327,049/2,617
  6. Step 6: Final answer
    x = 11,588.48

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.