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Finding the Fourth Proportional to 66,625.96, 91,942.74 and 36,410.92

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Solution

The fourth proportional to 66,625.96, 91,942.74 and 36,410.92 is: 50,246.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,625.96 : 91,942.74 = 36,410.92 : x
  2. Step 2: Convert to fraction form
    66,625.96/91,942.74 = 36,410.92/x
  3. Step 3: Cross multiply
    66,625.96x = 91,942.74 × 36,410.92
  4. Step 4: Simplify right side
    66,625.96x = 3,347,719,750.72
  5. Step 5: Solve for x
    x = 3,347,719,750.72/66,625.96
  6. Step 6: Final answer
    x = 50,246.48

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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.