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Finding the Fourth Proportional to 5,158.86, 7,738.86 and 1,696.38

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Solution

The fourth proportional to 5,158.86, 7,738.86 and 1,696.38 is: 2,544.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.86 : 7,738.86 = 1,696.38 : x
  2. Step 2: Convert to fraction form
    5,158.86/7,738.86 = 1,696.38/x
  3. Step 3: Cross multiply
    5,158.86x = 7,738.86 × 1,696.38
  4. Step 4: Simplify right side
    5,158.86x = 13,128,047.33
  5. Step 5: Solve for x
    x = 13,128,047.33/5,158.86
  6. Step 6: Final answer
    x = 2,544.76

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