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Finding the Fourth Proportional to 43,958.53, 65,749.41 and 40,767.74

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Solution

The fourth proportional to 43,958.53, 65,749.41 and 40,767.74 is: 60,976.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,958.53 : 65,749.41 = 40,767.74 : x
  2. Step 2: Convert to fraction form
    43,958.53/65,749.41 = 40,767.74/x
  3. Step 3: Cross multiply
    43,958.53x = 65,749.41 × 40,767.74
  4. Step 4: Simplify right side
    43,958.53x = 2,680,454,523.29
  5. Step 5: Solve for x
    x = 2,680,454,523.29/43,958.53
  6. Step 6: Final answer
    x = 60,976.89

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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.