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Finding the Third Proportional to 5,185.50 and 11,331

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Solution

The third proportional to 5,185.50 and 11,331 is: 24,759.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.50 : 11,331 = 11,331 : x
  2. Step 2: Convert to fraction form
    5,185.50/11,331 = 11,331/x
  3. Step 3: Cross multiply
    5,185.50x = 11,331 × 11,331
  4. Step 4: Simplify right side
    5,185.50x = 128,391,561
  5. Step 5: Solve for x
    x = 128,391,561/5,185.50
  6. Step 6: Final answer
    x = 24,759.73

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.