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Finding the Fourth Proportional to 67,052.80, 100,515.20 and 24,921.60

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Solution

The fourth proportional to 67,052.80, 100,515.20 and 24,921.60 is: 37,358.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,052.80 : 100,515.20 = 24,921.60 : x
  2. Step 2: Convert to fraction form
    67,052.80/100,515.20 = 24,921.60/x
  3. Step 3: Cross multiply
    67,052.80x = 100,515.20 × 24,921.60
  4. Step 4: Simplify right side
    67,052.80x = 2,504,999,608.32
  5. Step 5: Solve for x
    x = 2,504,999,608.32/67,052.80
  6. Step 6: Final answer
    x = 37,358.61

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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.