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Finding the Fourth Proportional to 43,879.56, 65,795.01 and 20,493.24

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Solution

The fourth proportional to 43,879.56, 65,795.01 and 20,493.24 is: 30,728.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,879.56 : 65,795.01 = 20,493.24 : x
  2. Step 2: Convert to fraction form
    43,879.56/65,795.01 = 20,493.24/x
  3. Step 3: Cross multiply
    43,879.56x = 65,795.01 × 20,493.24
  4. Step 4: Simplify right side
    43,879.56x = 1,348,352,930.73
  5. Step 5: Solve for x
    x = 1,348,352,930.73/43,879.56
  6. Step 6: Final answer
    x = 30,728.50

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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.