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Finding the Fourth Proportional to 29,940.75, 44,909.91 and 8,879.94

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Solution

The fourth proportional to 29,940.75, 44,909.91 and 8,879.94 is: 13,319.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,940.75 : 44,909.91 = 8,879.94 : x
  2. Step 2: Convert to fraction form
    29,940.75/44,909.91 = 8,879.94/x
  3. Step 3: Cross multiply
    29,940.75x = 44,909.91 × 8,879.94
  4. Step 4: Simplify right side
    29,940.75x = 398,797,306.21
  5. Step 5: Solve for x
    x = 398,797,306.21/29,940.75
  6. Step 6: Final answer
    x = 13,319.55

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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.