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Finding the Fourth Proportional to 4,978.06, 7,467.57 and 1,857.33

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Solution

The fourth proportional to 4,978.06, 7,467.57 and 1,857.33 is: 2,786.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,978.06 : 7,467.57 = 1,857.33 : x
  2. Step 2: Convert to fraction form
    4,978.06/7,467.57 = 1,857.33/x
  3. Step 3: Cross multiply
    4,978.06x = 7,467.57 × 1,857.33
  4. Step 4: Simplify right side
    4,978.06x = 13,869,741.79
  5. Step 5: Solve for x
    x = 13,869,741.79/4,978.06
  6. Step 6: Final answer
    x = 2,786.17

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