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Finding the Fourth Proportional to 31,858.88, 43,965.76 and 17,519.32

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Solution

The fourth proportional to 31,858.88, 43,965.76 and 17,519.32 is: 24,176.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,858.88 : 43,965.76 = 17,519.32 : x
  2. Step 2: Convert to fraction form
    31,858.88/43,965.76 = 17,519.32/x
  3. Step 3: Cross multiply
    31,858.88x = 43,965.76 × 17,519.32
  4. Step 4: Simplify right side
    31,858.88x = 770,250,218.48
  5. Step 5: Solve for x
    x = 770,250,218.48/31,858.88
  6. Step 6: Final answer
    x = 24,176.94

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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.