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Finding the Third Proportional to 3,361.88 and 7,290.75

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Solution

The third proportional to 3,361.88 and 7,290.75 is: 15,811.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,361.88 : 7,290.75 = 7,290.75 : x
  2. Step 2: Convert to fraction form
    3,361.88/7,290.75 = 7,290.75/x
  3. Step 3: Cross multiply
    3,361.88x = 7,290.75 × 7,290.75
  4. Step 4: Simplify right side
    3,361.88x = 53,155,035.56
  5. Step 5: Solve for x
    x = 53,155,035.56/3,361.88
  6. Step 6: Final answer
    x = 15,811.13

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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.