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Finding the Fourth Proportional to 7,479.92, 10,335.12 and 5,919.86

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Solution

The fourth proportional to 7,479.92, 10,335.12 and 5,919.86 is: 8,179.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.92 : 10,335.12 = 5,919.86 : x
  2. Step 2: Convert to fraction form
    7,479.92/10,335.12 = 5,919.86/x
  3. Step 3: Cross multiply
    7,479.92x = 10,335.12 × 5,919.86
  4. Step 4: Simplify right side
    7,479.92x = 61,182,463.48
  5. Step 5: Solve for x
    x = 61,182,463.48/7,479.92
  6. Step 6: Final answer
    x = 8,179.56

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