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Finding the Fourth Proportional to 39,173.99, 58,631.04 and 35,672.09

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Solution

The fourth proportional to 39,173.99, 58,631.04 and 35,672.09 is: 53,389.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,173.99 : 58,631.04 = 35,672.09 : x
  2. Step 2: Convert to fraction form
    39,173.99/58,631.04 = 35,672.09/x
  3. Step 3: Cross multiply
    39,173.99x = 58,631.04 × 35,672.09
  4. Step 4: Simplify right side
    39,173.99x = 2,091,491,735.67
  5. Step 5: Solve for x
    x = 2,091,491,735.67/39,173.99
  6. Step 6: Final answer
    x = 53,389.81

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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.