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Finding the Fourth Proportional to 36,213.72, 54,314.08 and 9,916.24

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Solution

The fourth proportional to 36,213.72, 54,314.08 and 9,916.24 is: 14,872.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,213.72 : 54,314.08 = 9,916.24 : x
  2. Step 2: Convert to fraction form
    36,213.72/54,314.08 = 9,916.24/x
  3. Step 3: Cross multiply
    36,213.72x = 54,314.08 × 9,916.24
  4. Step 4: Simplify right side
    36,213.72x = 538,591,452.66
  5. Step 5: Solve for x
    x = 538,591,452.66/36,213.72
  6. Step 6: Final answer
    x = 14,872.58

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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.