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Finding the Fourth Proportional to 39,842.66, 59,769.75 and 12,137.06

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Solution

The fourth proportional to 39,842.66, 59,769.75 and 12,137.06 is: 18,207.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,842.66 : 59,769.75 = 12,137.06 : x
  2. Step 2: Convert to fraction form
    39,842.66/59,769.75 = 12,137.06/x
  3. Step 3: Cross multiply
    39,842.66x = 59,769.75 × 12,137.06
  4. Step 4: Simplify right side
    39,842.66x = 725,429,041.94
  5. Step 5: Solve for x
    x = 725,429,041.94/39,842.66
  6. Step 6: Final answer
    x = 18,207.34

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