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Finding the Third Proportional to 5,538 and 7,629

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Solution

The third proportional to 5,538 and 7,629 is: 10,509.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538 : 7,629 = 7,629 : x
  2. Step 2: Convert to fraction form
    5,538/7,629 = 7,629/x
  3. Step 3: Cross multiply
    5,538x = 7,629 × 7,629
  4. Step 4: Simplify right side
    5,538x = 58,201,641
  5. Step 5: Solve for x
    x = 58,201,641/5,538
  6. Step 6: Final answer
    x = 10,509.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.