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Finding the Fourth Proportional to 6,797.36, 9,379.68 and 4,145.42

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Solution

The fourth proportional to 6,797.36, 9,379.68 and 4,145.42 is: 5,720.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,797.36 : 9,379.68 = 4,145.42 : x
  2. Step 2: Convert to fraction form
    6,797.36/9,379.68 = 4,145.42/x
  3. Step 3: Cross multiply
    6,797.36x = 9,379.68 × 4,145.42
  4. Step 4: Simplify right side
    6,797.36x = 38,882,713.07
  5. Step 5: Solve for x
    x = 38,882,713.07/6,797.36
  6. Step 6: Final answer
    x = 5,720.27

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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.