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Finding the Fourth Proportional to 19,428.54, 29,152.53 and 7,749.96

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Solution

The fourth proportional to 19,428.54, 29,152.53 and 7,749.96 is: 11,628.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.54 : 29,152.53 = 7,749.96 : x
  2. Step 2: Convert to fraction form
    19,428.54/29,152.53 = 7,749.96/x
  3. Step 3: Cross multiply
    19,428.54x = 29,152.53 × 7,749.96
  4. Step 4: Simplify right side
    19,428.54x = 225,930,941.40
  5. Step 5: Solve for x
    x = 225,930,941.40/19,428.54
  6. Step 6: Final answer
    x = 11,628.82

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