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Finding the Fourth Proportional to 66,158.70, 91,296.90 and 37,863.78

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Solution

The fourth proportional to 66,158.70, 91,296.90 and 37,863.78 is: 52,250.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,158.70 : 91,296.90 = 37,863.78 : x
  2. Step 2: Convert to fraction form
    66,158.70/91,296.90 = 37,863.78/x
  3. Step 3: Cross multiply
    66,158.70x = 91,296.90 × 37,863.78
  4. Step 4: Simplify right side
    66,158.70x = 3,456,845,736.28
  5. Step 5: Solve for x
    x = 3,456,845,736.28/66,158.70
  6. Step 6: Final answer
    x = 52,250.81

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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.