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Finding the Fourth Proportional to 28,949.40, 43,424.02 and 9,227.96

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Solution

The fourth proportional to 28,949.40, 43,424.02 and 9,227.96 is: 13,841.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,949.40 : 43,424.02 = 9,227.96 : x
  2. Step 2: Convert to fraction form
    28,949.40/43,424.02 = 9,227.96/x
  3. Step 3: Cross multiply
    28,949.40x = 43,424.02 × 9,227.96
  4. Step 4: Simplify right side
    28,949.40x = 400,715,119.60
  5. Step 5: Solve for x
    x = 400,715,119.60/28,949.40
  6. Step 6: Final answer
    x = 13,841.91

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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.