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Finding the Fourth Proportional to 5,169.15, 7,134.11 and 5,028.42

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Solution

The fourth proportional to 5,169.15, 7,134.11 and 5,028.42 is: 6,939.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.15 : 7,134.11 = 5,028.42 : x
  2. Step 2: Convert to fraction form
    5,169.15/7,134.11 = 5,028.42/x
  3. Step 3: Cross multiply
    5,169.15x = 7,134.11 × 5,028.42
  4. Step 4: Simplify right side
    5,169.15x = 35,873,301.41
  5. Step 5: Solve for x
    x = 35,873,301.41/5,169.15
  6. Step 6: Final answer
    x = 6,939.88

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1.5x scale

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.