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Finding the Third Proportional to 43,058 and 67,138

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Solution

The third proportional to 43,058 and 67,138 is: 104,684.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,058 : 67,138 = 67,138 : x
  2. Step 2: Convert to fraction form
    43,058/67,138 = 67,138/x
  3. Step 3: Cross multiply
    43,058x = 67,138 × 67,138
  4. Step 4: Simplify right side
    43,058x = 4,507,511,044
  5. Step 5: Solve for x
    x = 4,507,511,044/43,058
  6. Step 6: Final answer
    x = 104,684.64

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.