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Finding the Fourth Proportional to 29,879.83, 41,217.07 and 18,682.39

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Solution

The fourth proportional to 29,879.83, 41,217.07 and 18,682.39 is: 25,771.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,879.83 : 41,217.07 = 18,682.39 : x
  2. Step 2: Convert to fraction form
    29,879.83/41,217.07 = 18,682.39/x
  3. Step 3: Cross multiply
    29,879.83x = 41,217.07 × 18,682.39
  4. Step 4: Simplify right side
    29,879.83x = 770,033,376.40
  5. Step 5: Solve for x
    x = 770,033,376.40/29,879.83
  6. Step 6: Final answer
    x = 25,771.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.