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Finding the Fourth Proportional to 31,993.70, 47,990.55 and 29,806.70

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Solution

The fourth proportional to 31,993.70, 47,990.55 and 29,806.70 is: 44,710.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,993.70 : 47,990.55 = 29,806.70 : x
  2. Step 2: Convert to fraction form
    31,993.70/47,990.55 = 29,806.70/x
  3. Step 3: Cross multiply
    31,993.70x = 47,990.55 × 29,806.70
  4. Step 4: Simplify right side
    31,993.70x = 1,430,439,926.69
  5. Step 5: Solve for x
    x = 1,430,439,926.69/31,993.70
  6. Step 6: Final answer
    x = 44,710.05

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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.