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Finding the Fourth Proportional to 19,080.61, 28,620.60 and 5,229.61

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Solution

The fourth proportional to 19,080.61, 28,620.60 and 5,229.61 is: 7,844.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,080.61 : 28,620.60 = 5,229.61 : x
  2. Step 2: Convert to fraction form
    19,080.61/28,620.60 = 5,229.61/x
  3. Step 3: Cross multiply
    19,080.61x = 28,620.60 × 5,229.61
  4. Step 4: Simplify right side
    19,080.61x = 149,674,575.97
  5. Step 5: Solve for x
    x = 149,674,575.97/19,080.61
  6. Step 6: Final answer
    x = 7,844.33

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