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Finding the Fourth Proportional to 7,143.92, 10,715.35 and 2,400.11

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Solution

The fourth proportional to 7,143.92, 10,715.35 and 2,400.11 is: 3,599.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.92 : 10,715.35 = 2,400.11 : x
  2. Step 2: Convert to fraction form
    7,143.92/10,715.35 = 2,400.11/x
  3. Step 3: Cross multiply
    7,143.92x = 10,715.35 × 2,400.11
  4. Step 4: Simplify right side
    7,143.92x = 25,718,018.69
  5. Step 5: Solve for x
    x = 25,718,018.69/7,143.92
  6. Step 6: Final answer
    x = 3,599.99

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