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Finding the Fourth Proportional to 43,960.79, 65,752.78 and 40,769.99

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Solution

The fourth proportional to 43,960.79, 65,752.78 and 40,769.99 is: 60,980.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,960.79 : 65,752.78 = 40,769.99 : x
  2. Step 2: Convert to fraction form
    43,960.79/65,752.78 = 40,769.99/x
  3. Step 3: Cross multiply
    43,960.79x = 65,752.78 × 40,769.99
  4. Step 4: Simplify right side
    43,960.79x = 2,680,740,183.07
  5. Step 5: Solve for x
    x = 2,680,740,183.07/43,960.79
  6. Step 6: Final answer
    x = 60,980.25

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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.