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Finding the Fourth Proportional to 33,170.88, 45,743.22 and 28,148.88

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Solution

The fourth proportional to 33,170.88, 45,743.22 and 28,148.88 is: 38,817.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,170.88 : 45,743.22 = 28,148.88 : x
  2. Step 2: Convert to fraction form
    33,170.88/45,743.22 = 28,148.88/x
  3. Step 3: Cross multiply
    33,170.88x = 45,743.22 × 28,148.88
  4. Step 4: Simplify right side
    33,170.88x = 1,287,620,410.59
  5. Step 5: Solve for x
    x = 1,287,620,410.59/33,170.88
  6. Step 6: Final answer
    x = 38,817.79

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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.