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Finding the Fourth Proportional to 25,732.94, 38,595.74 and 12,581.78

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Solution

The fourth proportional to 25,732.94, 38,595.74 and 12,581.78 is: 18,870.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,732.94 : 38,595.74 = 12,581.78 : x
  2. Step 2: Convert to fraction form
    25,732.94/38,595.74 = 12,581.78/x
  3. Step 3: Cross multiply
    25,732.94x = 38,595.74 × 12,581.78
  4. Step 4: Simplify right side
    25,732.94x = 485,602,853.73
  5. Step 5: Solve for x
    x = 485,602,853.73/25,732.94
  6. Step 6: Final answer
    x = 18,870.87

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