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Finding the Third Proportional to 37,430 and 81,910

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Solution

The third proportional to 37,430 and 81,910 is: 179,247.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,430 : 81,910 = 81,910 : x
  2. Step 2: Convert to fraction form
    37,430/81,910 = 81,910/x
  3. Step 3: Cross multiply
    37,430x = 81,910 × 81,910
  4. Step 4: Simplify right side
    37,430x = 6,709,248,100
  5. Step 5: Solve for x
    x = 6,709,248,100/37,430
  6. Step 6: Final answer
    x = 179,247.88

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.