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Finding the Fourth Proportional to 8,918.76, 12,304.89 and 5,141.84

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Solution

The fourth proportional to 8,918.76, 12,304.89 and 5,141.84 is: 7,094.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.76 : 12,304.89 = 5,141.84 : x
  2. Step 2: Convert to fraction form
    8,918.76/12,304.89 = 5,141.84/x
  3. Step 3: Cross multiply
    8,918.76x = 12,304.89 × 5,141.84
  4. Step 4: Simplify right side
    8,918.76x = 63,269,818.67
  5. Step 5: Solve for x
    x = 63,269,818.67/8,918.76
  6. Step 6: Final answer
    x = 7,094.01

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