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Finding the Fourth Proportional to 66,768.91, 92,141.12 and 36,556.15

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Solution

The fourth proportional to 66,768.91, 92,141.12 and 36,556.15 is: 50,447.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,768.91 : 92,141.12 = 36,556.15 : x
  2. Step 2: Convert to fraction form
    66,768.91/92,141.12 = 36,556.15/x
  3. Step 3: Cross multiply
    66,768.91x = 92,141.12 × 36,556.15
  4. Step 4: Simplify right side
    66,768.91x = 3,368,324,673.37
  5. Step 5: Solve for x
    x = 3,368,324,673.37/66,768.91
  6. Step 6: Final answer
    x = 50,447.50

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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.