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Finding the Fourth Proportional to 6,320.99, 8,724.99 and 3,667.88

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Solution

The fourth proportional to 6,320.99, 8,724.99 and 3,667.88 is: 5,062.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,320.99 : 8,724.99 = 3,667.88 : x
  2. Step 2: Convert to fraction form
    6,320.99/8,724.99 = 3,667.88/x
  3. Step 3: Cross multiply
    6,320.99x = 8,724.99 × 3,667.88
  4. Step 4: Simplify right side
    6,320.99x = 32,002,172.70
  5. Step 5: Solve for x
    x = 32,002,172.70/6,320.99
  6. Step 6: Final answer
    x = 5,062.85

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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.