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Finding the Fourth Proportional to 66,367.49, 91,586.34 and 36,152.73

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Solution

The fourth proportional to 66,367.49, 91,586.34 and 36,152.73 is: 49,890.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,367.49 : 91,586.34 = 36,152.73 : x
  2. Step 2: Convert to fraction form
    66,367.49/91,586.34 = 36,152.73/x
  3. Step 3: Cross multiply
    66,367.49x = 91,586.34 × 36,152.73
  4. Step 4: Simplify right side
    66,367.49x = 3,311,096,221.71
  5. Step 5: Solve for x
    x = 3,311,096,221.71/66,367.49
  6. Step 6: Final answer
    x = 49,890.34

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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.