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Finding the Third Proportional to 39,910 and 58,110

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Solution

The third proportional to 39,910 and 58,110 is: 84,609.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,910 : 58,110 = 58,110 : x
  2. Step 2: Convert to fraction form
    39,910/58,110 = 58,110/x
  3. Step 3: Cross multiply
    39,910x = 58,110 × 58,110
  4. Step 4: Simplify right side
    39,910x = 3,376,772,100
  5. Step 5: Solve for x
    x = 3,376,772,100/39,910
  6. Step 6: Final answer
    x = 84,609.67

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.