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Finding the Third Proportional to 8,805 and 19,578.75

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Solution

The third proportional to 8,805 and 19,578.75 is: 43,535.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805 : 19,578.75 = 19,578.75 : x
  2. Step 2: Convert to fraction form
    8,805/19,578.75 = 19,578.75/x
  3. Step 3: Cross multiply
    8,805x = 19,578.75 × 19,578.75
  4. Step 4: Simplify right side
    8,805x = 383,327,451.56
  5. Step 5: Solve for x
    x = 383,327,451.56/8,805
  6. Step 6: Final answer
    x = 43,535.20

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.