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Finding the Fourth Proportional to 10,888.78, 16,333.20 and 9,043.60

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Solution

The fourth proportional to 10,888.78, 16,333.20 and 9,043.60 is: 13,565.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,888.78 : 16,333.20 = 9,043.60 : x
  2. Step 2: Convert to fraction form
    10,888.78/16,333.20 = 9,043.60/x
  3. Step 3: Cross multiply
    10,888.78x = 16,333.20 × 9,043.60
  4. Step 4: Simplify right side
    10,888.78x = 147,710,927.52
  5. Step 5: Solve for x
    x = 147,710,927.52/10,888.78
  6. Step 6: Final answer
    x = 13,565.42

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