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Finding the Fourth Proportional to 43,596.81, 65,378.79 and 34,345.80

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Solution

The fourth proportional to 43,596.81, 65,378.79 and 34,345.80 is: 51,505.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,596.81 : 65,378.79 = 34,345.80 : x
  2. Step 2: Convert to fraction form
    43,596.81/65,378.79 = 34,345.80/x
  3. Step 3: Cross multiply
    43,596.81x = 65,378.79 × 34,345.80
  4. Step 4: Simplify right side
    43,596.81x = 2,245,486,845.58
  5. Step 5: Solve for x
    x = 2,245,486,845.58/43,596.81
  6. Step 6: Final answer
    x = 51,505.76

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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.