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Finding the Fourth Proportional to 66,559.53, 91,849.74 and 36,344.31

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Solution

The fourth proportional to 66,559.53, 91,849.74 and 36,344.31 is: 50,153.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,559.53 : 91,849.74 = 36,344.31 : x
  2. Step 2: Convert to fraction form
    66,559.53/91,849.74 = 36,344.31/x
  3. Step 3: Cross multiply
    66,559.53x = 91,849.74 × 36,344.31
  4. Step 4: Simplify right side
    66,559.53x = 3,338,215,423.98
  5. Step 5: Solve for x
    x = 3,338,215,423.98/66,559.53
  6. Step 6: Final answer
    x = 50,153.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.