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Finding the Fourth Proportional to 66,591.88, 91,896.73 and 38,297.57

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Solution

The fourth proportional to 66,591.88, 91,896.73 and 38,297.57 is: 52,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,591.88 : 91,896.73 = 38,297.57 : x
  2. Step 2: Convert to fraction form
    66,591.88/91,896.73 = 38,297.57/x
  3. Step 3: Cross multiply
    66,591.88x = 91,896.73 × 38,297.57
  4. Step 4: Simplify right side
    66,591.88x = 3,519,420,894.72
  5. Step 5: Solve for x
    x = 3,519,420,894.72/66,591.88
  6. Step 6: Final answer
    x = 52,850.60

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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.