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Finding the Fourth Proportional to 6,796.28, 9,378.90 and 3,965.61

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Solution

The fourth proportional to 6,796.28, 9,378.90 and 3,965.61 is: 5,472.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,796.28 : 9,378.90 = 3,965.61 : x
  2. Step 2: Convert to fraction form
    6,796.28/9,378.90 = 3,965.61/x
  3. Step 3: Cross multiply
    6,796.28x = 9,378.90 × 3,965.61
  4. Step 4: Simplify right side
    6,796.28x = 37,193,059.63
  5. Step 5: Solve for x
    x = 37,193,059.63/6,796.28
  6. Step 6: Final answer
    x = 5,472.56

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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.