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Finding the Fourth Proportional to 36,154.40, 54,226.60 and 11,211.60

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Solution

The fourth proportional to 36,154.40, 54,226.60 and 11,211.60 is: 16,815.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,154.40 : 54,226.60 = 11,211.60 : x
  2. Step 2: Convert to fraction form
    36,154.40/54,226.60 = 11,211.60/x
  3. Step 3: Cross multiply
    36,154.40x = 54,226.60 × 11,211.60
  4. Step 4: Simplify right side
    36,154.40x = 607,966,948.56
  5. Step 5: Solve for x
    x = 607,966,948.56/36,154.40
  6. Step 6: Final answer
    x = 16,815.85

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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.