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Finding the Fourth Proportional to 66,414.45, 91,652.01 and 36,199.80

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Solution

The fourth proportional to 66,414.45, 91,652.01 and 36,199.80 is: 49,955.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,414.45 : 91,652.01 = 36,199.80 : x
  2. Step 2: Convert to fraction form
    66,414.45/91,652.01 = 36,199.80/x
  3. Step 3: Cross multiply
    66,414.45x = 91,652.01 × 36,199.80
  4. Step 4: Simplify right side
    66,414.45x = 3,317,784,431.60
  5. Step 5: Solve for x
    x = 3,317,784,431.60/66,414.45
  6. Step 6: Final answer
    x = 49,955.76

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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.