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Finding the Fourth Proportional to 18,299.86, 25,253.82 and 9,916.36

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Solution

The fourth proportional to 18,299.86, 25,253.82 and 9,916.36 is: 13,684.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,299.86 : 25,253.82 = 9,916.36 : x
  2. Step 2: Convert to fraction form
    18,299.86/25,253.82 = 9,916.36/x
  3. Step 3: Cross multiply
    18,299.86x = 25,253.82 × 9,916.36
  4. Step 4: Simplify right side
    18,299.86x = 250,425,870.17
  5. Step 5: Solve for x
    x = 250,425,870.17/18,299.86
  6. Step 6: Final answer
    x = 13,684.58

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