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Finding the Fourth Proportional to 12,466.31, 18,700.26 and 8,706.72

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Solution

The fourth proportional to 12,466.31, 18,700.26 and 8,706.72 is: 13,060.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,466.31 : 18,700.26 = 8,706.72 : x
  2. Step 2: Convert to fraction form
    12,466.31/18,700.26 = 8,706.72/x
  3. Step 3: Cross multiply
    12,466.31x = 18,700.26 × 8,706.72
  4. Step 4: Simplify right side
    12,466.31x = 162,817,927.75
  5. Step 5: Solve for x
    x = 162,817,927.75/12,466.31
  6. Step 6: Final answer
    x = 13,060.64

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