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Finding the Fourth Proportional to 11,404.69, 15,737.08 and 6,369.19

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Solution

The fourth proportional to 11,404.69, 15,737.08 and 6,369.19 is: 8,788.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,404.69 : 15,737.08 = 6,369.19 : x
  2. Step 2: Convert to fraction form
    11,404.69/15,737.08 = 6,369.19/x
  3. Step 3: Cross multiply
    11,404.69x = 15,737.08 × 6,369.19
  4. Step 4: Simplify right side
    11,404.69x = 100,232,452.57
  5. Step 5: Solve for x
    x = 100,232,452.57/11,404.69
  6. Step 6: Final answer
    x = 8,788.70

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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.