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Finding the Fourth Proportional to 66,190.48, 91,344.52 and 36,382.48

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Solution

The fourth proportional to 66,190.48, 91,344.52 and 36,382.48 is: 50,208.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,190.48 : 91,344.52 = 36,382.48 : x
  2. Step 2: Convert to fraction form
    66,190.48/91,344.52 = 36,382.48/x
  3. Step 3: Cross multiply
    66,190.48x = 91,344.52 × 36,382.48
  4. Step 4: Simplify right side
    66,190.48x = 3,323,340,172.01
  5. Step 5: Solve for x
    x = 3,323,340,172.01/66,190.48
  6. Step 6: Final answer
    x = 50,208.73

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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.