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Finding the Third Proportional to 5,389.88 and 11,836.13

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Solution

The third proportional to 5,389.88 and 11,836.13 is: 25,992.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.88 : 11,836.13 = 11,836.13 : x
  2. Step 2: Convert to fraction form
    5,389.88/11,836.13 = 11,836.13/x
  3. Step 3: Cross multiply
    5,389.88x = 11,836.13 × 11,836.13
  4. Step 4: Simplify right side
    5,389.88x = 140,093,855.02
  5. Step 5: Solve for x
    x = 140,093,855.02/5,389.88
  6. Step 6: Final answer
    x = 25,992.04

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.