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Finding the Fourth Proportional to 3,914.66, 5,863.03 and 1,967.42

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Solution

The fourth proportional to 3,914.66, 5,863.03 and 1,967.42 is: 2,946.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.66 : 5,863.03 = 1,967.42 : x
  2. Step 2: Convert to fraction form
    3,914.66/5,863.03 = 1,967.42/x
  3. Step 3: Cross multiply
    3,914.66x = 5,863.03 × 1,967.42
  4. Step 4: Simplify right side
    3,914.66x = 11,535,042.48
  5. Step 5: Solve for x
    x = 11,535,042.48/3,914.66
  6. Step 6: Final answer
    x = 2,946.63

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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.