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Finding the Fourth Proportional to 66,394.69, 91,624.67 and 36,586.69

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Solution

The fourth proportional to 66,394.69, 91,624.67 and 36,586.69 is: 50,489.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,394.69 : 91,624.67 = 36,586.69 : x
  2. Step 2: Convert to fraction form
    66,394.69/91,624.67 = 36,586.69/x
  3. Step 3: Cross multiply
    66,394.69x = 91,624.67 × 36,586.69
  4. Step 4: Simplify right side
    66,394.69x = 3,352,243,122.85
  5. Step 5: Solve for x
    x = 3,352,243,122.85/66,394.69
  6. Step 6: Final answer
    x = 50,489.63

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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.