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Finding the Fourth Proportional to 6,505.87, 8,978.09 and 3,673.84

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Solution

The fourth proportional to 6,505.87, 8,978.09 and 3,673.84 is: 5,069.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,505.87 : 8,978.09 = 3,673.84 : x
  2. Step 2: Convert to fraction form
    6,505.87/8,978.09 = 3,673.84/x
  3. Step 3: Cross multiply
    6,505.87x = 8,978.09 × 3,673.84
  4. Step 4: Simplify right side
    6,505.87x = 32,984,066.17
  5. Step 5: Solve for x
    x = 32,984,066.17/6,505.87
  6. Step 6: Final answer
    x = 5,069.89

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