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Finding the Third Proportional to 19,218.50 and 41,717

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Solution

The third proportional to 19,218.50 and 41,717 is: 90,553.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218.50 : 41,717 = 41,717 : x
  2. Step 2: Convert to fraction form
    19,218.50/41,717 = 41,717/x
  3. Step 3: Cross multiply
    19,218.50x = 41,717 × 41,717
  4. Step 4: Simplify right side
    19,218.50x = 1,740,308,089
  5. Step 5: Solve for x
    x = 1,740,308,089/19,218.50
  6. Step 6: Final answer
    x = 90,553.79

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.