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Finding the Fourth Proportional to 11,312.71, 16,984.59 and 5,769.79

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Solution

The fourth proportional to 11,312.71, 16,984.59 and 5,769.79 is: 8,662.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,312.71 : 16,984.59 = 5,769.79 : x
  2. Step 2: Convert to fraction form
    11,312.71/16,984.59 = 5,769.79/x
  3. Step 3: Cross multiply
    11,312.71x = 16,984.59 × 5,769.79
  4. Step 4: Simplify right side
    11,312.71x = 97,997,403.76
  5. Step 5: Solve for x
    x = 97,997,403.76/11,312.71
  6. Step 6: Final answer
    x = 8,662.60

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