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Finding the Fourth Proportional to 25,526.21, 38,221.81 and 19,990.67

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Solution

The fourth proportional to 25,526.21, 38,221.81 and 19,990.67 is: 29,933.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,526.21 : 38,221.81 = 19,990.67 : x
  2. Step 2: Convert to fraction form
    25,526.21/38,221.81 = 19,990.67/x
  3. Step 3: Cross multiply
    25,526.21x = 38,221.81 × 19,990.67
  4. Step 4: Simplify right side
    25,526.21x = 764,079,349.43
  5. Step 5: Solve for x
    x = 764,079,349.43/25,526.21
  6. Step 6: Final answer
    x = 29,933.14

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