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Finding the Fourth Proportional to 65,174.76, 89,942.55 and 36,880.44

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Solution

The fourth proportional to 65,174.76, 89,942.55 and 36,880.44 is: 50,895.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,174.76 : 89,942.55 = 36,880.44 : x
  2. Step 2: Convert to fraction form
    65,174.76/89,942.55 = 36,880.44/x
  3. Step 3: Cross multiply
    65,174.76x = 89,942.55 × 36,880.44
  4. Step 4: Simplify right side
    65,174.76x = 3,317,120,818.72
  5. Step 5: Solve for x
    x = 3,317,120,818.72/65,174.76
  6. Step 6: Final answer
    x = 50,895.79

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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.