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Finding the Fourth Proportional to 36,578.53, 54,873.02 and 11,280.18

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Solution

The fourth proportional to 36,578.53, 54,873.02 and 11,280.18 is: 16,921.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,578.53 : 54,873.02 = 11,280.18 : x
  2. Step 2: Convert to fraction form
    36,578.53/54,873.02 = 11,280.18/x
  3. Step 3: Cross multiply
    36,578.53x = 54,873.02 × 11,280.18
  4. Step 4: Simplify right side
    36,578.53x = 618,977,542.74
  5. Step 5: Solve for x
    x = 618,977,542.74/36,578.53
  6. Step 6: Final answer
    x = 16,921.88

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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.