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Finding the Fourth Proportional to 18,551.39, 27,829.68 and 6,072.39

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Solution

The fourth proportional to 18,551.39, 27,829.68 and 6,072.39 is: 9,109.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,551.39 : 27,829.68 = 6,072.39 : x
  2. Step 2: Convert to fraction form
    18,551.39/27,829.68 = 6,072.39/x
  3. Step 3: Cross multiply
    18,551.39x = 27,829.68 × 6,072.39
  4. Step 4: Simplify right side
    18,551.39x = 168,992,670.54
  5. Step 5: Solve for x
    x = 168,992,670.54/18,551.39
  6. Step 6: Final answer
    x = 9,109.44

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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.