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Finding the Fourth Proportional to 6,409.42, 9,614.09 and 3,449.26

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Solution

The fourth proportional to 6,409.42, 9,614.09 and 3,449.26 is: 5,173.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,409.42 : 9,614.09 = 3,449.26 : x
  2. Step 2: Convert to fraction form
    6,409.42/9,614.09 = 3,449.26/x
  3. Step 3: Cross multiply
    6,409.42x = 9,614.09 × 3,449.26
  4. Step 4: Simplify right side
    6,409.42x = 33,161,498.69
  5. Step 5: Solve for x
    x = 33,161,498.69/6,409.42
  6. Step 6: Final answer
    x = 5,173.87

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1.5x scale

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.