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Finding the Fourth Proportional to 43,954.82, 65,922.18 and 20,239.64

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Solution

The fourth proportional to 43,954.82, 65,922.18 and 20,239.64 is: 30,354.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,954.82 : 65,922.18 = 20,239.64 : x
  2. Step 2: Convert to fraction form
    43,954.82/65,922.18 = 20,239.64/x
  3. Step 3: Cross multiply
    43,954.82x = 65,922.18 × 20,239.64
  4. Step 4: Simplify right side
    43,954.82x = 1,334,240,861.60
  5. Step 5: Solve for x
    x = 1,334,240,861.60/43,954.82
  6. Step 6: Final answer
    x = 30,354.83

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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.