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Finding the Fourth Proportional to 19,878.17, 27,432.50 and 10,926.36

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Solution

The fourth proportional to 19,878.17, 27,432.50 and 10,926.36 is: 15,078.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,878.17 : 27,432.50 = 10,926.36 : x
  2. Step 2: Convert to fraction form
    19,878.17/27,432.50 = 10,926.36/x
  3. Step 3: Cross multiply
    19,878.17x = 27,432.50 × 10,926.36
  4. Step 4: Simplify right side
    19,878.17x = 299,737,316.07
  5. Step 5: Solve for x
    x = 299,737,316.07/19,878.17
  6. Step 6: Final answer
    x = 15,078.72

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