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Finding the Fourth Proportional to 17,067.81, 25,601.70 and 4,755.81

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Solution

The fourth proportional to 17,067.81, 25,601.70 and 4,755.81 is: 7,133.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,067.81 : 25,601.70 = 4,755.81 : x
  2. Step 2: Convert to fraction form
    17,067.81/25,601.70 = 4,755.81/x
  3. Step 3: Cross multiply
    17,067.81x = 25,601.70 × 4,755.81
  4. Step 4: Simplify right side
    17,067.81x = 121,756,934.72
  5. Step 5: Solve for x
    x = 121,756,934.72/17,067.81
  6. Step 6: Final answer
    x = 7,133.72

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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.