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Finding the Fourth Proportional to 11,241.65, 16,872.82 and 5,698.87

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Solution

The fourth proportional to 11,241.65, 16,872.82 and 5,698.87 is: 8,553.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,241.65 : 16,872.82 = 5,698.87 : x
  2. Step 2: Convert to fraction form
    11,241.65/16,872.82 = 5,698.87/x
  3. Step 3: Cross multiply
    11,241.65x = 16,872.82 × 5,698.87
  4. Step 4: Simplify right side
    11,241.65x = 96,155,951.28
  5. Step 5: Solve for x
    x = 96,155,951.28/11,241.65
  6. Step 6: Final answer
    x = 8,553.55

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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.