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Finding the Third Proportional to 911 and 1,894

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Solution

The third proportional to 911 and 1,894 is: 3,937.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    911 : 1,894 = 1,894 : x
  2. Step 2: Convert to fraction form
    911/1,894 = 1,894/x
  3. Step 3: Cross multiply
    911x = 1,894 × 1,894
  4. Step 4: Simplify right side
    911x = 3,587,236
  5. Step 5: Solve for x
    x = 3,587,236/911
  6. Step 6: Final answer
    x = 3,937.69

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.