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Finding the Fourth Proportional to 33,081.92, 45,653.92 and 18,939.32

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Solution

The fourth proportional to 33,081.92, 45,653.92 and 18,939.32 is: 26,136.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,081.92 : 45,653.92 = 18,939.32 : x
  2. Step 2: Convert to fraction form
    33,081.92/45,653.92 = 18,939.32/x
  3. Step 3: Cross multiply
    33,081.92x = 45,653.92 × 18,939.32
  4. Step 4: Simplify right side
    33,081.92x = 864,654,200.13
  5. Step 5: Solve for x
    x = 864,654,200.13/33,081.92
  6. Step 6: Final answer
    x = 26,136.76

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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.