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Finding the Fourth Proportional to 5,955.20, 8,923.20 and 5,129.60

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Solution

The fourth proportional to 5,955.20, 8,923.20 and 5,129.60 is: 7,686.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,955.20 : 8,923.20 = 5,129.60 : x
  2. Step 2: Convert to fraction form
    5,955.20/8,923.20 = 5,129.60/x
  3. Step 3: Cross multiply
    5,955.20x = 8,923.20 × 5,129.60
  4. Step 4: Simplify right side
    5,955.20x = 45,772,446.72
  5. Step 5: Solve for x
    x = 45,772,446.72/5,955.20
  6. Step 6: Final answer
    x = 7,686.13

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