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Finding the Fourth Proportional to 4,455.55, 6,683.93 and 1,857.88

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Solution

The fourth proportional to 4,455.55, 6,683.93 and 1,857.88 is: 2,787.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,455.55 : 6,683.93 = 1,857.88 : x
  2. Step 2: Convert to fraction form
    4,455.55/6,683.93 = 1,857.88/x
  3. Step 3: Cross multiply
    4,455.55x = 6,683.93 × 1,857.88
  4. Step 4: Simplify right side
    4,455.55x = 12,417,939.87
  5. Step 5: Solve for x
    x = 12,417,939.87/4,455.55
  6. Step 6: Final answer
    x = 2,787.07

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