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Finding the Third Proportional to 911 and 1,373

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Solution

The third proportional to 911 and 1,373 is: 2,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    911 : 1,373 = 1,373 : x
  2. Step 2: Convert to fraction form
    911/1,373 = 1,373/x
  3. Step 3: Cross multiply
    911x = 1,373 × 1,373
  4. Step 4: Simplify right side
    911x = 1,885,129
  5. Step 5: Solve for x
    x = 1,885,129/911
  6. Step 6: Final answer
    x = 2,069.30

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.