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Finding the Fourth Proportional to 41,992.81, 57,950.07 and 23,129.94

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Solution

The fourth proportional to 41,992.81, 57,950.07 and 23,129.94 is: 31,919.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,992.81 : 57,950.07 = 23,129.94 : x
  2. Step 2: Convert to fraction form
    41,992.81/57,950.07 = 23,129.94/x
  3. Step 3: Cross multiply
    41,992.81x = 57,950.07 × 23,129.94
  4. Step 4: Simplify right side
    41,992.81x = 1,340,381,642.10
  5. Step 5: Solve for x
    x = 1,340,381,642.10/41,992.81
  6. Step 6: Final answer
    x = 31,919.31

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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.