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Finding the Fourth Proportional to 18,368.64, 25,349.76 and 9,984.96

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Solution

The fourth proportional to 18,368.64, 25,349.76 and 9,984.96 is: 13,779.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,368.64 : 25,349.76 = 9,984.96 : x
  2. Step 2: Convert to fraction form
    18,368.64/25,349.76 = 9,984.96/x
  3. Step 3: Cross multiply
    18,368.64x = 25,349.76 × 9,984.96
  4. Step 4: Simplify right side
    18,368.64x = 253,116,339.61
  5. Step 5: Solve for x
    x = 253,116,339.61/18,368.64
  6. Step 6: Final answer
    x = 13,779.81

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