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Finding the Fourth Proportional to 5,169.79, 7,135.91 and 2,933.14

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Solution

The fourth proportional to 5,169.79, 7,135.91 and 2,933.14 is: 4,048.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.79 : 7,135.91 = 2,933.14 : x
  2. Step 2: Convert to fraction form
    5,169.79/7,135.91 = 2,933.14/x
  3. Step 3: Cross multiply
    5,169.79x = 7,135.91 × 2,933.14
  4. Step 4: Simplify right side
    5,169.79x = 20,930,631.43
  5. Step 5: Solve for x
    x = 20,930,631.43/5,169.79
  6. Step 6: Final answer
    x = 4,048.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.