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Finding the Fourth Proportional to 13,710.08, 20,573.34 and 5,918.88

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Solution

The fourth proportional to 13,710.08, 20,573.34 and 5,918.88 is: 8,881.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,710.08 : 20,573.34 = 5,918.88 : x
  2. Step 2: Convert to fraction form
    13,710.08/20,573.34 = 5,918.88/x
  3. Step 3: Cross multiply
    13,710.08x = 20,573.34 × 5,918.88
  4. Step 4: Simplify right side
    13,710.08x = 121,771,130.66
  5. Step 5: Solve for x
    x = 121,771,130.66/13,710.08
  6. Step 6: Final answer
    x = 8,881.87

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