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Finding the Third Proportional to 3,661.88 and 7,899.19

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Solution

The third proportional to 3,661.88 and 7,899.19 is: 17,039.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,661.88 : 7,899.19 = 7,899.19 : x
  2. Step 2: Convert to fraction form
    3,661.88/7,899.19 = 7,899.19/x
  3. Step 3: Cross multiply
    3,661.88x = 7,899.19 × 7,899.19
  4. Step 4: Simplify right side
    3,661.88x = 62,397,163.16
  5. Step 5: Solve for x
    x = 62,397,163.16/3,661.88
  6. Step 6: Final answer
    x = 17,039.68

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.