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Finding the Fourth Proportional to 19,112.52, 28,680.05 and 7,276.26

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Solution

The fourth proportional to 19,112.52, 28,680.05 and 7,276.26 is: 10,918.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,112.52 : 28,680.05 = 7,276.26 : x
  2. Step 2: Convert to fraction form
    19,112.52/28,680.05 = 7,276.26/x
  3. Step 3: Cross multiply
    19,112.52x = 28,680.05 × 7,276.26
  4. Step 4: Simplify right side
    19,112.52x = 208,683,363.90
  5. Step 5: Solve for x
    x = 208,683,363.90/19,112.52
  6. Step 6: Final answer
    x = 10,918.68

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