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Finding the Fourth Proportional to 29,640.32, 44,459.28 and 7,453.88

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Solution

The fourth proportional to 29,640.32, 44,459.28 and 7,453.88 is: 11,180.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,640.32 : 44,459.28 = 7,453.88 : x
  2. Step 2: Convert to fraction form
    29,640.32/44,459.28 = 7,453.88/x
  3. Step 3: Cross multiply
    29,640.32x = 44,459.28 × 7,453.88
  4. Step 4: Simplify right side
    29,640.32x = 331,394,138.01
  5. Step 5: Solve for x
    x = 331,394,138.01/29,640.32
  6. Step 6: Final answer
    x = 11,180.52

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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.