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Finding the Third Proportional to 8,919.45 and 19,604.45

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Solution

The third proportional to 8,919.45 and 19,604.45 is: 43,089.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.45 : 19,604.45 = 19,604.45 : x
  2. Step 2: Convert to fraction form
    8,919.45/19,604.45 = 19,604.45/x
  3. Step 3: Cross multiply
    8,919.45x = 19,604.45 × 19,604.45
  4. Step 4: Simplify right side
    8,919.45x = 384,334,544.04
  5. Step 5: Solve for x
    x = 384,334,544.04/8,919.45
  6. Step 6: Final answer
    x = 43,089.48

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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.