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Finding the Fourth Proportional to 6,322.14, 9,479.79 and 1,938.42

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Solution

The fourth proportional to 6,322.14, 9,479.79 and 1,938.42 is: 2,906.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,322.14 : 9,479.79 = 1,938.42 : x
  2. Step 2: Convert to fraction form
    6,322.14/9,479.79 = 1,938.42/x
  3. Step 3: Cross multiply
    6,322.14x = 9,479.79 × 1,938.42
  4. Step 4: Simplify right side
    6,322.14x = 18,375,814.53
  5. Step 5: Solve for x
    x = 18,375,814.53/6,322.14
  6. Step 6: Final answer
    x = 2,906.58

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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.