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Finding the Fourth Proportional to 50,472.66, 75,717.87 and 20,873.91

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Solution

The fourth proportional to 50,472.66, 75,717.87 and 20,873.91 is: 31,314.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,472.66 : 75,717.87 = 20,873.91 : x
  2. Step 2: Convert to fraction form
    50,472.66/75,717.87 = 20,873.91/x
  3. Step 3: Cross multiply
    50,472.66x = 75,717.87 × 20,873.91
  4. Step 4: Simplify right side
    50,472.66x = 1,580,528,003.77
  5. Step 5: Solve for x
    x = 1,580,528,003.77/50,472.66
  6. Step 6: Final answer
    x = 31,314.54

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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.