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Finding the Third Proportional to 851 and 1,833

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Solution

The third proportional to 851 and 1,833 is: 3,948.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    851 : 1,833 = 1,833 : x
  2. Step 2: Convert to fraction form
    851/1,833 = 1,833/x
  3. Step 3: Cross multiply
    851x = 1,833 × 1,833
  4. Step 4: Simplify right side
    851x = 3,359,889
  5. Step 5: Solve for x
    x = 3,359,889/851
  6. Step 6: Final answer
    x = 3,948.17

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.