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Finding the Fourth Proportional to 18,251.78, 27,374.54 and 5,101.11

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Solution

The fourth proportional to 18,251.78, 27,374.54 and 5,101.11 is: 7,650.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,251.78 : 27,374.54 = 5,101.11 : x
  2. Step 2: Convert to fraction form
    18,251.78/27,374.54 = 5,101.11/x
  3. Step 3: Cross multiply
    18,251.78x = 27,374.54 × 5,101.11
  4. Step 4: Simplify right side
    18,251.78x = 139,640,514.23
  5. Step 5: Solve for x
    x = 139,640,514.23/18,251.78
  6. Step 6: Final answer
    x = 7,650.79

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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.