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Finding the Fourth Proportional to 32,140.72, 44,342.78 and 20,943.28

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Solution

The fourth proportional to 32,140.72, 44,342.78 and 20,943.28 is: 28,894.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,140.72 : 44,342.78 = 20,943.28 : x
  2. Step 2: Convert to fraction form
    32,140.72/44,342.78 = 20,943.28/x
  3. Step 3: Cross multiply
    32,140.72x = 44,342.78 × 20,943.28
  4. Step 4: Simplify right side
    32,140.72x = 928,683,257.52
  5. Step 5: Solve for x
    x = 928,683,257.52/32,140.72
  6. Step 6: Final answer
    x = 28,894.29

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