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Finding the Fourth Proportional to 66,361.25, 91,578.53 and 36,553.25

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Solution

The fourth proportional to 66,361.25, 91,578.53 and 36,553.25 is: 50,443.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,361.25 : 91,578.53 = 36,553.25 : x
  2. Step 2: Convert to fraction form
    66,361.25/91,578.53 = 36,553.25/x
  3. Step 3: Cross multiply
    66,361.25x = 91,578.53 × 36,553.25
  4. Step 4: Simplify right side
    66,361.25x = 3,347,492,901.72
  5. Step 5: Solve for x
    x = 3,347,492,901.72/66,361.25
  6. Step 6: Final answer
    x = 50,443.49

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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.