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Finding the Fourth Proportional to 32,600.40, 48,900.60 and 20,936.40

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Solution

The fourth proportional to 32,600.40, 48,900.60 and 20,936.40 is: 31,404.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,600.40 : 48,900.60 = 20,936.40 : x
  2. Step 2: Convert to fraction form
    32,600.40/48,900.60 = 20,936.40/x
  3. Step 3: Cross multiply
    32,600.40x = 48,900.60 × 20,936.40
  4. Step 4: Simplify right side
    32,600.40x = 1,023,802,521.84
  5. Step 5: Solve for x
    x = 1,023,802,521.84/32,600.40
  6. Step 6: Final answer
    x = 31,404.60

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