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Finding the Fourth Proportional to 66,611.17, 91,922.34 and 36,395.83

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Solution

The fourth proportional to 66,611.17, 91,922.34 and 36,395.83 is: 50,225.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,611.17 : 91,922.34 = 36,395.83 : x
  2. Step 2: Convert to fraction form
    66,611.17/91,922.34 = 36,395.83/x
  3. Step 3: Cross multiply
    66,611.17x = 91,922.34 × 36,395.83
  4. Step 4: Simplify right side
    66,611.17x = 3,345,589,859.84
  5. Step 5: Solve for x
    x = 3,345,589,859.84/66,611.17
  6. Step 6: Final answer
    x = 50,225.66

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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.