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Finding the Fourth Proportional to 66,257.90, 91,435.43 and 36,042.67

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Solution

The fourth proportional to 66,257.90, 91,435.43 and 36,042.67 is: 49,738.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,257.90 : 91,435.43 = 36,042.67 : x
  2. Step 2: Convert to fraction form
    66,257.90/91,435.43 = 36,042.67/x
  3. Step 3: Cross multiply
    66,257.90x = 91,435.43 × 36,042.67
  4. Step 4: Simplify right side
    66,257.90x = 3,295,577,234.20
  5. Step 5: Solve for x
    x = 3,295,577,234.20/66,257.90
  6. Step 6: Final answer
    x = 49,738.63

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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.