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Finding the Third Proportional to 6,972.75 and 11,836.13

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Solution

The third proportional to 6,972.75 and 11,836.13 is: 20,091.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,972.75 : 11,836.13 = 11,836.13 : x
  2. Step 2: Convert to fraction form
    6,972.75/11,836.13 = 11,836.13/x
  3. Step 3: Cross multiply
    6,972.75x = 11,836.13 × 11,836.13
  4. Step 4: Simplify right side
    6,972.75x = 140,093,855.02
  5. Step 5: Solve for x
    x = 140,093,855.02/6,972.75
  6. Step 6: Final answer
    x = 20,091.62

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Why These Related Problems?

These problems maintain the same ratio (1.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.