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Finding the Fourth Proportional to 29,879.78, 41,224.78 and 16,956.91

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Solution

The fourth proportional to 29,879.78, 41,224.78 and 16,956.91 is: 23,395.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,879.78 : 41,224.78 = 16,956.91 : x
  2. Step 2: Convert to fraction form
    29,879.78/41,224.78 = 16,956.91/x
  3. Step 3: Cross multiply
    29,879.78x = 41,224.78 × 16,956.91
  4. Step 4: Simplify right side
    29,879.78x = 699,044,593.32
  5. Step 5: Solve for x
    x = 699,044,593.32/29,879.78
  6. Step 6: Final answer
    x = 23,395.24

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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.