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Finding the Fourth Proportional to 65,951.70, 91,013.21 and 35,737.85

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Solution

The fourth proportional to 65,951.70, 91,013.21 and 35,737.85 is: 49,318.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,951.70 : 91,013.21 = 35,737.85 : x
  2. Step 2: Convert to fraction form
    65,951.70/91,013.21 = 35,737.85/x
  3. Step 3: Cross multiply
    65,951.70x = 91,013.21 × 35,737.85
  4. Step 4: Simplify right side
    65,951.70x = 3,252,615,813.24
  5. Step 5: Solve for x
    x = 3,252,615,813.24/65,951.70
  6. Step 6: Final answer
    x = 49,318.15

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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.