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Finding the Fourth Proportional to 33,645.46, 50,420.60 and 18,659.21

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Solution

The fourth proportional to 33,645.46, 50,420.60 and 18,659.21 is: 27,962.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,645.46 : 50,420.60 = 18,659.21 : x
  2. Step 2: Convert to fraction form
    33,645.46/50,420.60 = 18,659.21/x
  3. Step 3: Cross multiply
    33,645.46x = 50,420.60 × 18,659.21
  4. Step 4: Simplify right side
    33,645.46x = 940,808,563.73
  5. Step 5: Solve for x
    x = 940,808,563.73/33,645.46
  6. Step 6: Final answer
    x = 27,962.42

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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.