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Finding the Third Proportional to 1,274 and 2,692

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Solution

The third proportional to 1,274 and 2,692 is: 5,688.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274 : 2,692 = 2,692 : x
  2. Step 2: Convert to fraction form
    1,274/2,692 = 2,692/x
  3. Step 3: Cross multiply
    1,274x = 2,692 × 2,692
  4. Step 4: Simplify right side
    1,274x = 7,246,864
  5. Step 5: Solve for x
    x = 7,246,864/1,274
  6. Step 6: Final answer
    x = 5,688.28

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.