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Finding the Fourth Proportional to 13,692.86, 20,539.47 and 4,807.83

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Solution

The fourth proportional to 13,692.86, 20,539.47 and 4,807.83 is: 7,211.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,692.86 : 20,539.47 = 4,807.83 : x
  2. Step 2: Convert to fraction form
    13,692.86/20,539.47 = 4,807.83/x
  3. Step 3: Cross multiply
    13,692.86x = 20,539.47 × 4,807.83
  4. Step 4: Simplify right side
    13,692.86x = 98,750,375.10
  5. Step 5: Solve for x
    x = 98,750,375.10/13,692.86
  6. Step 6: Final answer
    x = 7,211.82

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