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Finding the Fourth Proportional to 11,269.88, 16,905.21 and 3,874.18

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Solution

The fourth proportional to 11,269.88, 16,905.21 and 3,874.18 is: 5,811.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,269.88 : 16,905.21 = 3,874.18 : x
  2. Step 2: Convert to fraction form
    11,269.88/16,905.21 = 3,874.18/x
  3. Step 3: Cross multiply
    11,269.88x = 16,905.21 × 3,874.18
  4. Step 4: Simplify right side
    11,269.88x = 65,493,801.38
  5. Step 5: Solve for x
    x = 65,493,801.38/11,269.88
  6. Step 6: Final answer
    x = 5,811.40

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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.