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Finding the Fourth Proportional to 18,563.94, 27,845.88 and 8,696.28

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Solution

The fourth proportional to 18,563.94, 27,845.88 and 8,696.28 is: 13,044.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,563.94 : 27,845.88 = 8,696.28 : x
  2. Step 2: Convert to fraction form
    18,563.94/27,845.88 = 8,696.28/x
  3. Step 3: Cross multiply
    18,563.94x = 27,845.88 × 8,696.28
  4. Step 4: Simplify right side
    18,563.94x = 242,155,569.33
  5. Step 5: Solve for x
    x = 242,155,569.33/18,563.94
  6. Step 6: Final answer
    x = 13,044.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.