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Finding the Third Proportional to 1,394 and 3,173

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Solution

The third proportional to 1,394 and 3,173 is: 7,222.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394 : 3,173 = 3,173 : x
  2. Step 2: Convert to fraction form
    1,394/3,173 = 3,173/x
  3. Step 3: Cross multiply
    1,394x = 3,173 × 3,173
  4. Step 4: Simplify right side
    1,394x = 10,067,929
  5. Step 5: Solve for x
    x = 10,067,929/1,394
  6. Step 6: Final answer
    x = 7,222.33

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Why These Related Problems?

These problems maintain the same ratio (2.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.