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Finding the Fourth Proportional to 33,187.96, 45,764.22 and 21,251.80

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Solution

The fourth proportional to 33,187.96, 45,764.22 and 21,251.80 is: 29,304.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,187.96 : 45,764.22 = 21,251.80 : x
  2. Step 2: Convert to fraction form
    33,187.96/45,764.22 = 21,251.80/x
  3. Step 3: Cross multiply
    33,187.96x = 45,764.22 × 21,251.80
  4. Step 4: Simplify right side
    33,187.96x = 972,572,050.60
  5. Step 5: Solve for x
    x = 972,572,050.60/33,187.96
  6. Step 6: Final answer
    x = 29,304.97

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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.