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Finding the Fourth Proportional to 33,905.82, 50,858.73 and 13,129.32

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Solution

The fourth proportional to 33,905.82, 50,858.73 and 13,129.32 is: 19,693.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,905.82 : 50,858.73 = 13,129.32 : x
  2. Step 2: Convert to fraction form
    33,905.82/50,858.73 = 13,129.32/x
  3. Step 3: Cross multiply
    33,905.82x = 50,858.73 × 13,129.32
  4. Step 4: Simplify right side
    33,905.82x = 667,740,540.96
  5. Step 5: Solve for x
    x = 667,740,540.96/33,905.82
  6. Step 6: Final answer
    x = 19,693.98

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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.