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Finding the Fourth Proportional to 40,515.94, 60,761.67 and 10,934.11

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Solution

The fourth proportional to 40,515.94, 60,761.67 and 10,934.11 is: 16,397.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,515.94 : 60,761.67 = 10,934.11 : x
  2. Step 2: Convert to fraction form
    40,515.94/60,761.67 = 10,934.11/x
  3. Step 3: Cross multiply
    40,515.94x = 60,761.67 × 10,934.11
  4. Step 4: Simplify right side
    40,515.94x = 664,374,783.56
  5. Step 5: Solve for x
    x = 664,374,783.56/40,515.94
  6. Step 6: Final answer
    x = 16,397.86

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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.