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Finding the Fourth Proportional to 6,940.98, 9,578.57 and 3,797.17

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Solution

The fourth proportional to 6,940.98, 9,578.57 and 3,797.17 is: 5,240.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940.98 : 9,578.57 = 3,797.17 : x
  2. Step 2: Convert to fraction form
    6,940.98/9,578.57 = 3,797.17/x
  3. Step 3: Cross multiply
    6,940.98x = 9,578.57 × 3,797.17
  4. Step 4: Simplify right side
    6,940.98x = 36,371,458.65
  5. Step 5: Solve for x
    x = 36,371,458.65/6,940.98
  6. Step 6: Final answer
    x = 5,240.10

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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.