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Finding the Fourth Proportional to 66,771.54, 92,144.74 and 36,558.78

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Solution

The fourth proportional to 66,771.54, 92,144.74 and 36,558.78 is: 50,451.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,771.54 : 92,144.74 = 36,558.78 : x
  2. Step 2: Convert to fraction form
    66,771.54/92,144.74 = 36,558.78/x
  3. Step 3: Cross multiply
    66,771.54x = 92,144.74 × 36,558.78
  4. Step 4: Simplify right side
    66,771.54x = 3,368,699,277.82
  5. Step 5: Solve for x
    x = 3,368,699,277.82/66,771.54
  6. Step 6: Final answer
    x = 50,451.12

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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.