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Finding the Fourth Proportional to 53,843.96, 80,765.22 and 18,783.44

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Solution

The fourth proportional to 53,843.96, 80,765.22 and 18,783.44 is: 28,174.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,843.96 : 80,765.22 = 18,783.44 : x
  2. Step 2: Convert to fraction form
    53,843.96/80,765.22 = 18,783.44/x
  3. Step 3: Cross multiply
    53,843.96x = 80,765.22 × 18,783.44
  4. Step 4: Simplify right side
    53,843.96x = 1,517,048,663.96
  5. Step 5: Solve for x
    x = 1,517,048,663.96/53,843.96
  6. Step 6: Final answer
    x = 28,174.91

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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.