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Finding the Fourth Proportional to 7,616.67, 11,424.92 and 3,919.92

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Solution

The fourth proportional to 7,616.67, 11,424.92 and 3,919.92 is: 5,879.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,616.67 : 11,424.92 = 3,919.92 : x
  2. Step 2: Convert to fraction form
    7,616.67/11,424.92 = 3,919.92/x
  3. Step 3: Cross multiply
    7,616.67x = 11,424.92 × 3,919.92
  4. Step 4: Simplify right side
    7,616.67x = 44,784,752.81
  5. Step 5: Solve for x
    x = 44,784,752.81/7,616.67
  6. Step 6: Final answer
    x = 5,879.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.