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Finding the Fourth Proportional to 17,158.31, 25,688.93 and 10,902.81

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Solution

The fourth proportional to 17,158.31, 25,688.93 and 10,902.81 is: 16,323.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,158.31 : 25,688.93 = 10,902.81 : x
  2. Step 2: Convert to fraction form
    17,158.31/25,688.93 = 10,902.81/x
  3. Step 3: Cross multiply
    17,158.31x = 25,688.93 × 10,902.81
  4. Step 4: Simplify right side
    17,158.31x = 280,081,468.38
  5. Step 5: Solve for x
    x = 280,081,468.38/17,158.31
  6. Step 6: Final answer
    x = 16,323.38

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