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Finding the Fourth Proportional to 52,769.80, 79,209.26 and 35,361.28

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Solution

The fourth proportional to 52,769.80, 79,209.26 and 35,361.28 is: 53,078.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,769.80 : 79,209.26 = 35,361.28 : x
  2. Step 2: Convert to fraction form
    52,769.80/79,209.26 = 35,361.28/x
  3. Step 3: Cross multiply
    52,769.80x = 79,209.26 × 35,361.28
  4. Step 4: Simplify right side
    52,769.80x = 2,800,940,821.45
  5. Step 5: Solve for x
    x = 2,800,940,821.45/52,769.80
  6. Step 6: Final answer
    x = 53,078.48

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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.