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Finding the Fourth Proportional to 40,786.48, 61,100.79 and 23,878.54

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Solution

The fourth proportional to 40,786.48, 61,100.79 and 23,878.54 is: 35,771.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,786.48 : 61,100.79 = 23,878.54 : x
  2. Step 2: Convert to fraction form
    40,786.48/61,100.79 = 23,878.54/x
  3. Step 3: Cross multiply
    40,786.48x = 61,100.79 × 23,878.54
  4. Step 4: Simplify right side
    40,786.48x = 1,458,997,658.05
  5. Step 5: Solve for x
    x = 1,458,997,658.05/40,786.48
  6. Step 6: Final answer
    x = 35,771.60

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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.