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Finding the Third Proportional to 1,693.69 and 2,391.19

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Solution

The third proportional to 1,693.69 and 2,391.19 is: 3,375.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693.69 : 2,391.19 = 2,391.19 : x
  2. Step 2: Convert to fraction form
    1,693.69/2,391.19 = 2,391.19/x
  3. Step 3: Cross multiply
    1,693.69x = 2,391.19 × 2,391.19
  4. Step 4: Simplify right side
    1,693.69x = 5,717,777.66
  5. Step 5: Solve for x
    x = 5,717,777.66/1,693.69
  6. Step 6: Final answer
    x = 3,375.93

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.