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Finding the Fourth Proportional to 66,359.62, 91,575.50 and 36,144.84

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Solution

The fourth proportional to 66,359.62, 91,575.50 and 36,144.84 is: 49,879.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,359.62 : 91,575.50 = 36,144.84 : x
  2. Step 2: Convert to fraction form
    66,359.62/91,575.50 = 36,144.84/x
  3. Step 3: Cross multiply
    66,359.62x = 91,575.50 × 36,144.84
  4. Step 4: Simplify right side
    66,359.62x = 3,309,981,958.10
  5. Step 5: Solve for x
    x = 3,309,981,958.10/66,359.62
  6. Step 6: Final answer
    x = 49,879.46

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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.