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Finding the Fourth Proportional to 11,768.53, 17,652.79 and 3,448.54

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Solution

The fourth proportional to 11,768.53, 17,652.79 and 3,448.54 is: 5,172.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,768.53 : 17,652.79 = 3,448.54 : x
  2. Step 2: Convert to fraction form
    11,768.53/17,652.79 = 3,448.54/x
  3. Step 3: Cross multiply
    11,768.53x = 17,652.79 × 3,448.54
  4. Step 4: Simplify right side
    11,768.53x = 60,876,365.87
  5. Step 5: Solve for x
    x = 60,876,365.87/11,768.53
  6. Step 6: Final answer
    x = 5,172.81

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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.