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Finding the Fourth Proportional to 5,869.80, 8,804.70 and 5,140.20

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Solution

The fourth proportional to 5,869.80, 8,804.70 and 5,140.20 is: 7,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,869.80 : 8,804.70 = 5,140.20 : x
  2. Step 2: Convert to fraction form
    5,869.80/8,804.70 = 5,140.20/x
  3. Step 3: Cross multiply
    5,869.80x = 8,804.70 × 5,140.20
  4. Step 4: Simplify right side
    5,869.80x = 45,257,918.94
  5. Step 5: Solve for x
    x = 45,257,918.94/5,869.80
  6. Step 6: Final answer
    x = 7,710.30

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