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Finding the Fourth Proportional to 33,918.40, 50,879.04 and 10,545.28

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Solution

The fourth proportional to 33,918.40, 50,879.04 and 10,545.28 is: 15,818.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,918.40 : 50,879.04 = 10,545.28 : x
  2. Step 2: Convert to fraction form
    33,918.40/50,879.04 = 10,545.28/x
  3. Step 3: Cross multiply
    33,918.40x = 50,879.04 × 10,545.28
  4. Step 4: Simplify right side
    33,918.40x = 536,533,722.93
  5. Step 5: Solve for x
    x = 536,533,722.93/33,918.40
  6. Step 6: Final answer
    x = 15,818.37

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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.