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Finding the Third Proportional to 11,979.75 and 26,031

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Solution

The third proportional to 11,979.75 and 26,031 is: 56,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.75 : 26,031 = 26,031 : x
  2. Step 2: Convert to fraction form
    11,979.75/26,031 = 26,031/x
  3. Step 3: Cross multiply
    11,979.75x = 26,031 × 26,031
  4. Step 4: Simplify right side
    11,979.75x = 677,612,961
  5. Step 5: Solve for x
    x = 677,612,961/11,979.75
  6. Step 6: Final answer
    x = 56,563.20

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.