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Finding the Fourth Proportional to 31,771.92, 43,843.92 and 17,623.92

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Solution

The fourth proportional to 31,771.92, 43,843.92 and 17,623.92 is: 24,320.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,771.92 : 43,843.92 = 17,623.92 : x
  2. Step 2: Convert to fraction form
    31,771.92/43,843.92 = 17,623.92/x
  3. Step 3: Cross multiply
    31,771.92x = 43,843.92 × 17,623.92
  4. Step 4: Simplify right side
    31,771.92x = 772,701,738.57
  5. Step 5: Solve for x
    x = 772,701,738.57/31,771.92
  6. Step 6: Final answer
    x = 24,320.27

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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.