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Finding the Fourth Proportional to 18,816.26, 28,226.26 and 4,965.26

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Solution

The fourth proportional to 18,816.26, 28,226.26 and 4,965.26 is: 7,448.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,816.26 : 28,226.26 = 4,965.26 : x
  2. Step 2: Convert to fraction form
    18,816.26/28,226.26 = 4,965.26/x
  3. Step 3: Cross multiply
    18,816.26x = 28,226.26 × 4,965.26
  4. Step 4: Simplify right side
    18,816.26x = 140,150,719.73
  5. Step 5: Solve for x
    x = 140,150,719.73/18,816.26
  6. Step 6: Final answer
    x = 7,448.38

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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.