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Finding the Third Proportional to 1,396.69 and 3,070.97

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Solution

The third proportional to 1,396.69 and 3,070.97 is: 6,752.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396.69 : 3,070.97 = 3,070.97 : x
  2. Step 2: Convert to fraction form
    1,396.69/3,070.97 = 3,070.97/x
  3. Step 3: Cross multiply
    1,396.69x = 3,070.97 × 3,070.97
  4. Step 4: Simplify right side
    1,396.69x = 9,430,849.06
  5. Step 5: Solve for x
    x = 9,430,849.06/1,396.69
  6. Step 6: Final answer
    x = 6,752.30

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.