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Finding the Fourth Proportional to 51,465.34, 77,205.39 and 15,929.78

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Solution

The fourth proportional to 51,465.34, 77,205.39 and 15,929.78 is: 23,896.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,465.34 : 77,205.39 = 15,929.78 : x
  2. Step 2: Convert to fraction form
    51,465.34/77,205.39 = 15,929.78/x
  3. Step 3: Cross multiply
    51,465.34x = 77,205.39 × 15,929.78
  4. Step 4: Simplify right side
    51,465.34x = 1,229,865,129.69
  5. Step 5: Solve for x
    x = 1,229,865,129.69/51,465.34
  6. Step 6: Final answer
    x = 23,896.96

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