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Finding the Fourth Proportional to 43,911.30, 65,672.55 and 36,912.90

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Solution

The fourth proportional to 43,911.30, 65,672.55 and 36,912.90 is: 55,205.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,911.30 : 65,672.55 = 36,912.90 : x
  2. Step 2: Convert to fraction form
    43,911.30/65,672.55 = 36,912.90/x
  3. Step 3: Cross multiply
    43,911.30x = 65,672.55 × 36,912.90
  4. Step 4: Simplify right side
    43,911.30x = 2,424,164,270.90
  5. Step 5: Solve for x
    x = 2,424,164,270.90/43,911.30
  6. Step 6: Final answer
    x = 55,205.93

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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.