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Finding the Fourth Proportional to 3,978.05, 5,965.00 and 1,784.88

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Solution

The fourth proportional to 3,978.05, 5,965.00 and 1,784.88 is: 2,676.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,978.05 : 5,965.00 = 1,784.88 : x
  2. Step 2: Convert to fraction form
    3,978.05/5,965.00 = 1,784.88/x
  3. Step 3: Cross multiply
    3,978.05x = 5,965.00 × 1,784.88
  4. Step 4: Simplify right side
    3,978.05x = 10,646,804.74
  5. Step 5: Solve for x
    x = 10,646,804.74/3,978.05
  6. Step 6: Final answer
    x = 2,676.39

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