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Finding the Fourth Proportional to 27,721, 41,581.86 and 9,253

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Solution

The fourth proportional to 27,721, 41,581.86 and 9,253 is: 13,879.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,721 : 41,581.86 = 9,253 : x
  2. Step 2: Convert to fraction form
    27,721/41,581.86 = 9,253/x
  3. Step 3: Cross multiply
    27,721x = 41,581.86 × 9,253
  4. Step 4: Simplify right side
    27,721x = 384,756,950.58
  5. Step 5: Solve for x
    x = 384,756,950.58/27,721
  6. Step 6: Final answer
    x = 13,879.62

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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.