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Finding the Fourth Proportional to 43,910.98, 65,866.64 and 10,631

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Solution

The fourth proportional to 43,910.98, 65,866.64 and 10,631 is: 15,946.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,910.98 : 65,866.64 = 10,631 : x
  2. Step 2: Convert to fraction form
    43,910.98/65,866.64 = 10,631/x
  3. Step 3: Cross multiply
    43,910.98x = 65,866.64 × 10,631
  4. Step 4: Simplify right side
    43,910.98x = 700,228,249.84
  5. Step 5: Solve for x
    x = 700,228,249.84/43,910.98
  6. Step 6: Final answer
    x = 15,946.54

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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.