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Finding the Fourth Proportional to 65,195.64, 89,951.85 and 36,900.72

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Solution

The fourth proportional to 65,195.64, 89,951.85 and 36,900.72 is: 50,912.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,195.64 : 89,951.85 = 36,900.72 : x
  2. Step 2: Convert to fraction form
    65,195.64/89,951.85 = 36,900.72/x
  3. Step 3: Cross multiply
    65,195.64x = 89,951.85 × 36,900.72
  4. Step 4: Simplify right side
    65,195.64x = 3,319,288,030.33
  5. Step 5: Solve for x
    x = 3,319,288,030.33/65,195.64
  6. Step 6: Final answer
    x = 50,912.73

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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.