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Finding the Fourth Proportional to 7,885.05, 11,832.17 and 4,377.99

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Solution

The fourth proportional to 7,885.05, 11,832.17 and 4,377.99 is: 6,569.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,885.05 : 11,832.17 = 4,377.99 : x
  2. Step 2: Convert to fraction form
    7,885.05/11,832.17 = 4,377.99/x
  3. Step 3: Cross multiply
    7,885.05x = 11,832.17 × 4,377.99
  4. Step 4: Simplify right side
    7,885.05x = 51,801,121.94
  5. Step 5: Solve for x
    x = 51,801,121.94/7,885.05
  6. Step 6: Final answer
    x = 6,569.54

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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.