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Finding the Fourth Proportional to 39,172.99, 58,629.54 and 35,671.09

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Solution

The fourth proportional to 39,172.99, 58,629.54 and 35,671.09 is: 53,388.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,172.99 : 58,629.54 = 35,671.09 : x
  2. Step 2: Convert to fraction form
    39,172.99/58,629.54 = 35,671.09/x
  3. Step 3: Cross multiply
    39,172.99x = 58,629.54 × 35,671.09
  4. Step 4: Simplify right side
    39,172.99x = 2,091,379,304.85
  5. Step 5: Solve for x
    x = 2,091,379,304.85/39,172.99
  6. Step 6: Final answer
    x = 53,388.31

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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.