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Finding the Fourth Proportional to 13,330.92, 18,398.43 and 7,741.92

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Solution

The fourth proportional to 13,330.92, 18,398.43 and 7,741.92 is: 10,684.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.92 : 18,398.43 = 7,741.92 : x
  2. Step 2: Convert to fraction form
    13,330.92/18,398.43 = 7,741.92/x
  3. Step 3: Cross multiply
    13,330.92x = 18,398.43 × 7,741.92
  4. Step 4: Simplify right side
    13,330.92x = 142,439,173.19
  5. Step 5: Solve for x
    x = 142,439,173.19/13,330.92
  6. Step 6: Final answer
    x = 10,684.87

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