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Finding the Fourth Proportional to 11,236.45, 16,854.94 and 2,916.80

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Solution

The fourth proportional to 11,236.45, 16,854.94 and 2,916.80 is: 4,375.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,236.45 : 16,854.94 = 2,916.80 : x
  2. Step 2: Convert to fraction form
    11,236.45/16,854.94 = 2,916.80/x
  3. Step 3: Cross multiply
    11,236.45x = 16,854.94 × 2,916.80
  4. Step 4: Simplify right side
    11,236.45x = 49,162,488.99
  5. Step 5: Solve for x
    x = 49,162,488.99/11,236.45
  6. Step 6: Final answer
    x = 4,375.27

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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.