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Finding the Fourth Proportional to 6,798.49, 9,380.31 and 3,964.16

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Solution

The fourth proportional to 6,798.49, 9,380.31 and 3,964.16 is: 5,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,798.49 : 9,380.31 = 3,964.16 : x
  2. Step 2: Convert to fraction form
    6,798.49/9,380.31 = 3,964.16/x
  3. Step 3: Cross multiply
    6,798.49x = 9,380.31 × 3,964.16
  4. Step 4: Simplify right side
    6,798.49x = 37,185,049.69
  5. Step 5: Solve for x
    x = 37,185,049.69/6,798.49
  6. Step 6: Final answer
    x = 5,469.60

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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.