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Finding the Third Proportional to 1,698 and 2,622

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Solution

The third proportional to 1,698 and 2,622 is: 4,048.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698 : 2,622 = 2,622 : x
  2. Step 2: Convert to fraction form
    1,698/2,622 = 2,622/x
  3. Step 3: Cross multiply
    1,698x = 2,622 × 2,622
  4. Step 4: Simplify right side
    1,698x = 6,874,884
  5. Step 5: Solve for x
    x = 6,874,884/1,698
  6. Step 6: Final answer
    x = 4,048.81

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.