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Finding the Third Proportional to 8,191.13 and 19,855.13

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Solution

The third proportional to 8,191.13 and 19,855.13 is: 48,128.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,191.13 : 19,855.13 = 19,855.13 : x
  2. Step 2: Convert to fraction form
    8,191.13/19,855.13 = 19,855.13/x
  3. Step 3: Cross multiply
    8,191.13x = 19,855.13 × 19,855.13
  4. Step 4: Simplify right side
    8,191.13x = 394,225,988.77
  5. Step 5: Solve for x
    x = 394,225,988.77/8,191.13
  6. Step 6: Final answer
    x = 48,128.43

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.