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Finding the Fourth Proportional to 6,382.74, 9,574.12 and 1,940.42

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Solution

The fourth proportional to 6,382.74, 9,574.12 and 1,940.42 is: 2,910.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,382.74 : 9,574.12 = 1,940.42 : x
  2. Step 2: Convert to fraction form
    6,382.74/9,574.12 = 1,940.42/x
  3. Step 3: Cross multiply
    6,382.74x = 9,574.12 × 1,940.42
  4. Step 4: Simplify right side
    6,382.74x = 18,577,813.93
  5. Step 5: Solve for x
    x = 18,577,813.93/6,382.74
  6. Step 6: Final answer
    x = 2,910.63

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Similar ratio
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1.5x scale

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.