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Finding the Fourth Proportional to 39,163.53, 58,745.03 and 9,581.79

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Solution

The fourth proportional to 39,163.53, 58,745.03 and 9,581.79 is: 14,372.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,163.53 : 58,745.03 = 9,581.79 : x
  2. Step 2: Convert to fraction form
    39,163.53/58,745.03 = 9,581.79/x
  3. Step 3: Cross multiply
    39,163.53x = 58,745.03 × 9,581.79
  4. Step 4: Simplify right side
    39,163.53x = 562,882,493.09
  5. Step 5: Solve for x
    x = 562,882,493.09/39,163.53
  6. Step 6: Final answer
    x = 14,372.62

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1.5x scale

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.