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Finding the Third Proportional to 43,764 and 67,894

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Solution

The third proportional to 43,764 and 67,894 is: 105,328.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,764 : 67,894 = 67,894 : x
  2. Step 2: Convert to fraction form
    43,764/67,894 = 67,894/x
  3. Step 3: Cross multiply
    43,764x = 67,894 × 67,894
  4. Step 4: Simplify right side
    43,764x = 4,609,595,236
  5. Step 5: Solve for x
    x = 4,609,595,236/43,764
  6. Step 6: Final answer
    x = 105,328.47

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.