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Finding the Third Proportional to 8,991 and 19,213.88

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Solution

The third proportional to 8,991 and 19,213.88 is: 41,060.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991 : 19,213.88 = 19,213.88 : x
  2. Step 2: Convert to fraction form
    8,991/19,213.88 = 19,213.88/x
  3. Step 3: Cross multiply
    8,991x = 19,213.88 × 19,213.88
  4. Step 4: Simplify right side
    8,991x = 369,172,992.52
  5. Step 5: Solve for x
    x = 369,172,992.52/8,991
  6. Step 6: Final answer
    x = 41,060.28

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.