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Finding the Fourth Proportional to 67,295.67, 100,944.28 and 28,821.96

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Solution

The fourth proportional to 67,295.67, 100,944.28 and 28,821.96 is: 43,233.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,295.67 : 100,944.28 = 28,821.96 : x
  2. Step 2: Convert to fraction form
    67,295.67/100,944.28 = 28,821.96/x
  3. Step 3: Cross multiply
    67,295.67x = 100,944.28 × 28,821.96
  4. Step 4: Simplify right side
    67,295.67x = 2,909,412,000.39
  5. Step 5: Solve for x
    x = 2,909,412,000.39/67,295.67
  6. Step 6: Final answer
    x = 43,233.27

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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.