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Finding the Third Proportional to 1,084 and 1,383

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Solution

The third proportional to 1,084 and 1,383 is: 1,764.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,084 : 1,383 = 1,383 : x
  2. Step 2: Convert to fraction form
    1,084/1,383 = 1,383/x
  3. Step 3: Cross multiply
    1,084x = 1,383 × 1,383
  4. Step 4: Simplify right side
    1,084x = 1,912,689
  5. Step 5: Solve for x
    x = 1,912,689/1,084
  6. Step 6: Final answer
    x = 1,764.47

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.