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Finding the Fourth Proportional to 18,055.05, 24,915.50 and 9,988.50

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Solution

The fourth proportional to 18,055.05, 24,915.50 and 9,988.50 is: 13,783.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,055.05 : 24,915.50 = 9,988.50 : x
  2. Step 2: Convert to fraction form
    18,055.05/24,915.50 = 9,988.50/x
  3. Step 3: Cross multiply
    18,055.05x = 24,915.50 × 9,988.50
  4. Step 4: Simplify right side
    18,055.05x = 248,868,496.72
  5. Step 5: Solve for x
    x = 248,868,496.72/18,055.05
  6. Step 6: Final answer
    x = 13,783.87

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