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Finding the Fourth Proportional to 3,964.92, 5,474.22 and 3,717.12

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Solution

The fourth proportional to 3,964.92, 5,474.22 and 3,717.12 is: 5,132.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.92 : 5,474.22 = 3,717.12 : x
  2. Step 2: Convert to fraction form
    3,964.92/5,474.22 = 3,717.12/x
  3. Step 3: Cross multiply
    3,964.92x = 5,474.22 × 3,717.12
  4. Step 4: Simplify right side
    3,964.92x = 20,348,332.65
  5. Step 5: Solve for x
    x = 20,348,332.65/3,964.92
  6. Step 6: Final answer
    x = 5,132.09

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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.