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Finding the Fourth Proportional to 17,840.61, 26,740.87 and 8,472.96

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Solution

The fourth proportional to 17,840.61, 26,740.87 and 8,472.96 is: 12,699.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,840.61 : 26,740.87 = 8,472.96 : x
  2. Step 2: Convert to fraction form
    17,840.61/26,740.87 = 8,472.96/x
  3. Step 3: Cross multiply
    17,840.61x = 26,740.87 × 8,472.96
  4. Step 4: Simplify right side
    17,840.61x = 226,574,300.69
  5. Step 5: Solve for x
    x = 226,574,300.69/17,840.61
  6. Step 6: Final answer
    x = 12,699.92

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