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Finding the Fourth Proportional to 3,910.82, 5,865.21 and 1,446.35

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Solution

The fourth proportional to 3,910.82, 5,865.21 and 1,446.35 is: 2,169.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910.82 : 5,865.21 = 1,446.35 : x
  2. Step 2: Convert to fraction form
    3,910.82/5,865.21 = 1,446.35/x
  3. Step 3: Cross multiply
    3,910.82x = 5,865.21 × 1,446.35
  4. Step 4: Simplify right side
    3,910.82x = 8,483,124.59
  5. Step 5: Solve for x
    x = 8,483,124.59/3,910.82
  6. Step 6: Final answer
    x = 2,169.14

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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.