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Finding the Fourth Proportional to 3,965.62, 5,471.13 and 2,393.14

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Solution

The fourth proportional to 3,965.62, 5,471.13 and 2,393.14 is: 3,301.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.62 : 5,471.13 = 2,393.14 : x
  2. Step 2: Convert to fraction form
    3,965.62/5,471.13 = 2,393.14/x
  3. Step 3: Cross multiply
    3,965.62x = 5,471.13 × 2,393.14
  4. Step 4: Simplify right side
    3,965.62x = 13,093,180.05
  5. Step 5: Solve for x
    x = 13,093,180.05/3,965.62
  6. Step 6: Final answer
    x = 3,301.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.