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Finding the Fourth Proportional to 19,256.76, 28,885.32 and 6,109.20

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Solution

The fourth proportional to 19,256.76, 28,885.32 and 6,109.20 is: 9,163.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,256.76 : 28,885.32 = 6,109.20 : x
  2. Step 2: Convert to fraction form
    19,256.76/28,885.32 = 6,109.20/x
  3. Step 3: Cross multiply
    19,256.76x = 28,885.32 × 6,109.20
  4. Step 4: Simplify right side
    19,256.76x = 176,466,196.94
  5. Step 5: Solve for x
    x = 176,466,196.94/19,256.76
  6. Step 6: Final answer
    x = 9,163.86

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