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Finding the Third Proportional to 8,080 and 12,544

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Solution

The third proportional to 8,080 and 12,544 is: 19,474.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,080 : 12,544 = 12,544 : x
  2. Step 2: Convert to fraction form
    8,080/12,544 = 12,544/x
  3. Step 3: Cross multiply
    8,080x = 12,544 × 12,544
  4. Step 4: Simplify right side
    8,080x = 157,351,936
  5. Step 5: Solve for x
    x = 157,351,936/8,080
  6. Step 6: Final answer
    x = 19,474.25

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.