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Finding the Fourth Proportional to 13,915.76, 19,204.96 and 7,629.36

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Solution

The fourth proportional to 13,915.76, 19,204.96 and 7,629.36 is: 10,529.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.76 : 19,204.96 = 7,629.36 : x
  2. Step 2: Convert to fraction form
    13,915.76/19,204.96 = 7,629.36/x
  3. Step 3: Cross multiply
    13,915.76x = 19,204.96 × 7,629.36
  4. Step 4: Simplify right side
    13,915.76x = 146,521,553.63
  5. Step 5: Solve for x
    x = 146,521,553.63/13,915.76
  6. Step 6: Final answer
    x = 10,529.18

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