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Finding the Fourth Proportional to 22,258.92, 30,718.80 and 12,828.12

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Solution

The fourth proportional to 22,258.92, 30,718.80 and 12,828.12 is: 17,703.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,258.92 : 30,718.80 = 12,828.12 : x
  2. Step 2: Convert to fraction form
    22,258.92/30,718.80 = 12,828.12/x
  3. Step 3: Cross multiply
    22,258.92x = 30,718.80 × 12,828.12
  4. Step 4: Simplify right side
    22,258.92x = 394,064,452.66
  5. Step 5: Solve for x
    x = 394,064,452.66/22,258.92
  6. Step 6: Final answer
    x = 17,703.66

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