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Finding the Fourth Proportional to 50,436.39, 69,621.23 and 39,653.13

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Solution

The fourth proportional to 50,436.39, 69,621.23 and 39,653.13 is: 54,736.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,436.39 : 69,621.23 = 39,653.13 : x
  2. Step 2: Convert to fraction form
    50,436.39/69,621.23 = 39,653.13/x
  3. Step 3: Cross multiply
    50,436.39x = 69,621.23 × 39,653.13
  4. Step 4: Simplify right side
    50,436.39x = 2,760,699,485.68
  5. Step 5: Solve for x
    x = 2,760,699,485.68/50,436.39
  6. Step 6: Final answer
    x = 54,736.26

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