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Finding the Fourth Proportional to 53,910.36, 80,879.04 and 20,633.04

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Solution

The fourth proportional to 53,910.36, 80,879.04 and 20,633.04 is: 30,954.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,910.36 : 80,879.04 = 20,633.04 : x
  2. Step 2: Convert to fraction form
    53,910.36/80,879.04 = 20,633.04/x
  3. Step 3: Cross multiply
    53,910.36x = 80,879.04 × 20,633.04
  4. Step 4: Simplify right side
    53,910.36x = 1,668,780,467.48
  5. Step 5: Solve for x
    x = 1,668,780,467.48/53,910.36
  6. Step 6: Final answer
    x = 30,954.73

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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.