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Finding the Third Proportional to 1,836.74 and 3,949.54

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Solution

The third proportional to 1,836.74 and 3,949.54 is: 8,492.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,836.74 : 3,949.54 = 3,949.54 : x
  2. Step 2: Convert to fraction form
    1,836.74/3,949.54 = 3,949.54/x
  3. Step 3: Cross multiply
    1,836.74x = 3,949.54 × 3,949.54
  4. Step 4: Simplify right side
    1,836.74x = 15,598,874.23
  5. Step 5: Solve for x
    x = 15,598,874.23/1,836.74
  6. Step 6: Final answer
    x = 8,492.70

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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.