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Finding the Third Proportional to 45,039 and 67,306

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Solution

The third proportional to 45,039 and 67,306 is: 100,581.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,039 : 67,306 = 67,306 : x
  2. Step 2: Convert to fraction form
    45,039/67,306 = 67,306/x
  3. Step 3: Cross multiply
    45,039x = 67,306 × 67,306
  4. Step 4: Simplify right side
    45,039x = 4,530,097,636
  5. Step 5: Solve for x
    x = 4,530,097,636/45,039
  6. Step 6: Final answer
    x = 100,581.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.