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Finding the Fourth Proportional to 67,212.32, 92,749.46 and 36,991.76

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Solution

The fourth proportional to 67,212.32, 92,749.46 and 36,991.76 is: 51,046.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,212.32 : 92,749.46 = 36,991.76 : x
  2. Step 2: Convert to fraction form
    67,212.32/92,749.46 = 36,991.76/x
  3. Step 3: Cross multiply
    67,212.32x = 92,749.46 × 36,991.76
  4. Step 4: Simplify right side
    67,212.32x = 3,430,965,115.74
  5. Step 5: Solve for x
    x = 3,430,965,115.74/67,212.32
  6. Step 6: Final answer
    x = 51,046.67

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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.