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Finding the Fourth Proportional to 66,474.88, 91,736.39 and 36,260.19

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Solution

The fourth proportional to 66,474.88, 91,736.39 and 36,260.19 is: 50,039.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,474.88 : 91,736.39 = 36,260.19 : x
  2. Step 2: Convert to fraction form
    66,474.88/91,736.39 = 36,260.19/x
  3. Step 3: Cross multiply
    66,474.88x = 91,736.39 × 36,260.19
  4. Step 4: Simplify right side
    66,474.88x = 3,326,379,021.96
  5. Step 5: Solve for x
    x = 3,326,379,021.96/66,474.88
  6. Step 6: Final answer
    x = 50,039.64

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1.5x scale

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.