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Finding the Fourth Proportional to 36,459, 54,690.60 and 11,499.84

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Solution

The fourth proportional to 36,459, 54,690.60 and 11,499.84 is: 17,250.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,459 : 54,690.60 = 11,499.84 : x
  2. Step 2: Convert to fraction form
    36,459/54,690.60 = 11,499.84/x
  3. Step 3: Cross multiply
    36,459x = 54,690.60 × 11,499.84
  4. Step 4: Simplify right side
    36,459x = 628,933,149.50
  5. Step 5: Solve for x
    x = 628,933,149.50/36,459
  6. Step 6: Final answer
    x = 17,250.42

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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.