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Finding the Fourth Proportional to 40,059.62, 60,084.19 and 10,479.72

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Solution

The fourth proportional to 40,059.62, 60,084.19 and 10,479.72 is: 15,718.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,059.62 : 60,084.19 = 10,479.72 : x
  2. Step 2: Convert to fraction form
    40,059.62/60,084.19 = 10,479.72/x
  3. Step 3: Cross multiply
    40,059.62x = 60,084.19 × 10,479.72
  4. Step 4: Simplify right side
    40,059.62x = 629,665,487.63
  5. Step 5: Solve for x
    x = 629,665,487.63/40,059.62
  6. Step 6: Final answer
    x = 15,718.21

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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.