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Finding the Third Proportional to 841 and 1,814

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Solution

The third proportional to 841 and 1,814 is: 3,912.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    841 : 1,814 = 1,814 : x
  2. Step 2: Convert to fraction form
    841/1,814 = 1,814/x
  3. Step 3: Cross multiply
    841x = 1,814 × 1,814
  4. Step 4: Simplify right side
    841x = 3,290,596
  5. Step 5: Solve for x
    x = 3,290,596/841
  6. Step 6: Final answer
    x = 3,912.72

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.