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Finding the Fourth Proportional to 51,740.46, 77,610.66 and 13,789.74

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Solution

The fourth proportional to 51,740.46, 77,610.66 and 13,789.74 is: 20,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,740.46 : 77,610.66 = 13,789.74 : x
  2. Step 2: Convert to fraction form
    51,740.46/77,610.66 = 13,789.74/x
  3. Step 3: Cross multiply
    51,740.46x = 77,610.66 × 13,789.74
  4. Step 4: Simplify right side
    51,740.46x = 1,070,230,822.63
  5. Step 5: Solve for x
    x = 1,070,230,822.63/51,740.46
  6. Step 6: Final answer
    x = 20,684.60

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