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Finding the Fourth Proportional to 8,531.98, 12,809.93 and 4,374.97

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Solution

The fourth proportional to 8,531.98, 12,809.93 and 4,374.97 is: 6,568.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.98 : 12,809.93 = 4,374.97 : x
  2. Step 2: Convert to fraction form
    8,531.98/12,809.93 = 4,374.97/x
  3. Step 3: Cross multiply
    8,531.98x = 12,809.93 × 4,374.97
  4. Step 4: Simplify right side
    8,531.98x = 56,043,059.45
  5. Step 5: Solve for x
    x = 56,043,059.45/8,531.98
  6. Step 6: Final answer
    x = 6,568.59

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