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Finding the Fourth Proportional to 6,663.99, 9,196.20 and 3,679.83

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Solution

The fourth proportional to 6,663.99, 9,196.20 and 3,679.83 is: 5,078.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,663.99 : 9,196.20 = 3,679.83 : x
  2. Step 2: Convert to fraction form
    6,663.99/9,196.20 = 3,679.83/x
  3. Step 3: Cross multiply
    6,663.99x = 9,196.20 × 3,679.83
  4. Step 4: Simplify right side
    6,663.99x = 33,840,452.65
  5. Step 5: Solve for x
    x = 33,840,452.65/6,663.99
  6. Step 6: Final answer
    x = 5,078.11

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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.