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Finding the Third Proportional to 43,894 and 68,070

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Solution

The third proportional to 43,894 and 68,070 is: 105,561.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,894 : 68,070 = 68,070 : x
  2. Step 2: Convert to fraction form
    43,894/68,070 = 68,070/x
  3. Step 3: Cross multiply
    43,894x = 68,070 × 68,070
  4. Step 4: Simplify right side
    43,894x = 4,633,524,900
  5. Step 5: Solve for x
    x = 4,633,524,900/43,894
  6. Step 6: Final answer
    x = 105,561.69

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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.