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Finding the Fourth Proportional to 28,691.09, 42,748.26 and 27,079.61

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Solution

The fourth proportional to 28,691.09, 42,748.26 and 27,079.61 is: 40,347.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,691.09 : 42,748.26 = 27,079.61 : x
  2. Step 2: Convert to fraction form
    28,691.09/42,748.26 = 27,079.61/x
  3. Step 3: Cross multiply
    28,691.09x = 42,748.26 × 27,079.61
  4. Step 4: Simplify right side
    28,691.09x = 1,157,605,995.24
  5. Step 5: Solve for x
    x = 1,157,605,995.24/28,691.09
  6. Step 6: Final answer
    x = 40,347.24

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