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Finding the Third Proportional to 12,080 and 15,496

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Solution

The third proportional to 12,080 and 15,496 is: 19,877.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,080 : 15,496 = 15,496 : x
  2. Step 2: Convert to fraction form
    12,080/15,496 = 15,496/x
  3. Step 3: Cross multiply
    12,080x = 15,496 × 15,496
  4. Step 4: Simplify right side
    12,080x = 240,126,016
  5. Step 5: Solve for x
    x = 240,126,016/12,080
  6. Step 6: Final answer
    x = 19,877.98

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.