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Finding the Fourth Proportional to 3,966.48, 5,945.21 and 3,082.41

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Solution

The fourth proportional to 3,966.48, 5,945.21 and 3,082.41 is: 4,620.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.48 : 5,945.21 = 3,082.41 : x
  2. Step 2: Convert to fraction form
    3,966.48/5,945.21 = 3,082.41/x
  3. Step 3: Cross multiply
    3,966.48x = 5,945.21 × 3,082.41
  4. Step 4: Simplify right side
    3,966.48x = 18,325,559.34
  5. Step 5: Solve for x
    x = 18,325,559.34/3,966.48
  6. Step 6: Final answer
    x = 4,620.11

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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.