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Finding the Fourth Proportional to 29,321.44, 43,982.16 and 19,479.92

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Solution

The fourth proportional to 29,321.44, 43,982.16 and 19,479.92 is: 29,219.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,321.44 : 43,982.16 = 19,479.92 : x
  2. Step 2: Convert to fraction form
    29,321.44/43,982.16 = 19,479.92/x
  3. Step 3: Cross multiply
    29,321.44x = 43,982.16 × 19,479.92
  4. Step 4: Simplify right side
    29,321.44x = 856,768,958.23
  5. Step 5: Solve for x
    x = 856,768,958.23/29,321.44
  6. Step 6: Final answer
    x = 29,219.88

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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.