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Finding the Fourth Proportional to 6,369.91, 9,560.93 and 3,909.53

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Solution

The fourth proportional to 6,369.91, 9,560.93 and 3,909.53 is: 5,868.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,369.91 : 9,560.93 = 3,909.53 : x
  2. Step 2: Convert to fraction form
    6,369.91/9,560.93 = 3,909.53/x
  3. Step 3: Cross multiply
    6,369.91x = 9,560.93 × 3,909.53
  4. Step 4: Simplify right side
    6,369.91x = 37,378,747.02
  5. Step 5: Solve for x
    x = 37,378,747.02/6,369.91
  6. Step 6: Final answer
    x = 5,868.02

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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.