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Finding the Fourth Proportional to 41,885.62, 62,838.75 and 20,835.64

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Solution

The fourth proportional to 41,885.62, 62,838.75 and 20,835.64 is: 31,258.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,885.62 : 62,838.75 = 20,835.64 : x
  2. Step 2: Convert to fraction form
    41,885.62/62,838.75 = 20,835.64/x
  3. Step 3: Cross multiply
    41,885.62x = 62,838.75 × 20,835.64
  4. Step 4: Simplify right side
    41,885.62x = 1,309,285,573.05
  5. Step 5: Solve for x
    x = 1,309,285,573.05/41,885.62
  6. Step 6: Final answer
    x = 31,258.59

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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.