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Finding the Fourth Proportional to 33,159.78, 45,760.49 and 18,255.78

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Solution

The fourth proportional to 33,159.78, 45,760.49 and 18,255.78 is: 25,192.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,159.78 : 45,760.49 = 18,255.78 : x
  2. Step 2: Convert to fraction form
    33,159.78/45,760.49 = 18,255.78/x
  3. Step 3: Cross multiply
    33,159.78x = 45,760.49 × 18,255.78
  4. Step 4: Simplify right side
    33,159.78x = 835,393,438.13
  5. Step 5: Solve for x
    x = 835,393,438.13/33,159.78
  6. Step 6: Final answer
    x = 25,192.97

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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.