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Finding the Fourth Proportional to 43,992.69, 65,984.44 and 12,401.94

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Solution

The fourth proportional to 43,992.69, 65,984.44 and 12,401.94 is: 18,601.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,992.69 : 65,984.44 = 12,401.94 : x
  2. Step 2: Convert to fraction form
    43,992.69/65,984.44 = 12,401.94/x
  3. Step 3: Cross multiply
    43,992.69x = 65,984.44 × 12,401.94
  4. Step 4: Simplify right side
    43,992.69x = 818,335,065.81
  5. Step 5: Solve for x
    x = 818,335,065.81/43,992.69
  6. Step 6: Final answer
    x = 18,601.61

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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.