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Finding the Fourth Proportional to 36,113.72, 54,175.72 and 11,155.84

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Solution

The fourth proportional to 36,113.72, 54,175.72 and 11,155.84 is: 16,735.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,113.72 : 54,175.72 = 11,155.84 : x
  2. Step 2: Convert to fraction form
    36,113.72/54,175.72 = 11,155.84/x
  3. Step 3: Cross multiply
    36,113.72x = 54,175.72 × 11,155.84
  4. Step 4: Simplify right side
    36,113.72x = 604,375,664.20
  5. Step 5: Solve for x
    x = 604,375,664.20/36,113.72
  6. Step 6: Final answer
    x = 16,735.35

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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.