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Finding the Fourth Proportional to 5,135.28, 7,700.43 and 3,055.56

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Solution

The fourth proportional to 5,135.28, 7,700.43 and 3,055.56 is: 4,581.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.28 : 7,700.43 = 3,055.56 : x
  2. Step 2: Convert to fraction form
    5,135.28/7,700.43 = 3,055.56/x
  3. Step 3: Cross multiply
    5,135.28x = 7,700.43 × 3,055.56
  4. Step 4: Simplify right side
    5,135.28x = 23,529,125.89
  5. Step 5: Solve for x
    x = 23,529,125.89/5,135.28
  6. Step 6: Final answer
    x = 4,581.86

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