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Finding the Fourth Proportional to 3,274.70, 4,912.05 and 2,696.36

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Solution

The fourth proportional to 3,274.70, 4,912.05 and 2,696.36 is: 4,044.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,274.70 : 4,912.05 = 2,696.36 : x
  2. Step 2: Convert to fraction form
    3,274.70/4,912.05 = 2,696.36/x
  3. Step 3: Cross multiply
    3,274.70x = 4,912.05 × 2,696.36
  4. Step 4: Simplify right side
    3,274.70x = 13,244,655.14
  5. Step 5: Solve for x
    x = 13,244,655.14/3,274.70
  6. Step 6: Final answer
    x = 4,044.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.