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Finding the Fourth Proportional to 66,719.58, 92,072.20 and 36,504.47

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Solution

The fourth proportional to 66,719.58, 92,072.20 and 36,504.47 is: 50,375.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,719.58 : 92,072.20 = 36,504.47 : x
  2. Step 2: Convert to fraction form
    66,719.58/92,072.20 = 36,504.47/x
  3. Step 3: Cross multiply
    66,719.58x = 92,072.20 × 36,504.47
  4. Step 4: Simplify right side
    66,719.58x = 3,361,046,311.11
  5. Step 5: Solve for x
    x = 3,361,046,311.11/66,719.58
  6. Step 6: Final answer
    x = 50,375.71

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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.