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Finding the Fourth Proportional to 27,879.83, 38,481.54 and 17,263.43

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Solution

The fourth proportional to 27,879.83, 38,481.54 and 17,263.43 is: 23,828.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,879.83 : 38,481.54 = 17,263.43 : x
  2. Step 2: Convert to fraction form
    27,879.83/38,481.54 = 17,263.43/x
  3. Step 3: Cross multiply
    27,879.83x = 38,481.54 × 17,263.43
  4. Step 4: Simplify right side
    27,879.83x = 664,323,372.08
  5. Step 5: Solve for x
    x = 664,323,372.08/27,879.83
  6. Step 6: Final answer
    x = 23,828.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.