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Finding the Fourth Proportional to 6,796.91, 9,379.13 and 4,143.79

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Solution

The fourth proportional to 6,796.91, 9,379.13 and 4,143.79 is: 5,718.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,796.91 : 9,379.13 = 4,143.79 : x
  2. Step 2: Convert to fraction form
    6,796.91/9,379.13 = 4,143.79/x
  3. Step 3: Cross multiply
    6,796.91x = 9,379.13 × 4,143.79
  4. Step 4: Simplify right side
    6,796.91x = 38,865,136.11
  5. Step 5: Solve for x
    x = 38,865,136.11/6,796.91
  6. Step 6: Final answer
    x = 5,718.06

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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.