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Finding the Third Proportional to 1,698.75 and 3,354.19

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Solution

The third proportional to 1,698.75 and 3,354.19 is: 6,622.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698.75 : 3,354.19 = 3,354.19 : x
  2. Step 2: Convert to fraction form
    1,698.75/3,354.19 = 3,354.19/x
  3. Step 3: Cross multiply
    1,698.75x = 3,354.19 × 3,354.19
  4. Step 4: Simplify right side
    1,698.75x = 11,250,573.79
  5. Step 5: Solve for x
    x = 11,250,573.79/1,698.75
  6. Step 6: Final answer
    x = 6,622.85

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.