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Finding the Fourth Proportional to 27,879.54, 41,803.60 and 9,154.48

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Solution

The fourth proportional to 27,879.54, 41,803.60 and 9,154.48 is: 13,726.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,879.54 : 41,803.60 = 9,154.48 : x
  2. Step 2: Convert to fraction form
    27,879.54/41,803.60 = 9,154.48/x
  3. Step 3: Cross multiply
    27,879.54x = 41,803.60 × 9,154.48
  4. Step 4: Simplify right side
    27,879.54x = 382,690,220.13
  5. Step 5: Solve for x
    x = 382,690,220.13/27,879.54
  6. Step 6: Final answer
    x = 13,726.56

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1.5x scale

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.