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Finding the Third Proportional to 39,112 and 80,046

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Solution

The third proportional to 39,112 and 80,046 is: 163,820.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,112 : 80,046 = 80,046 : x
  2. Step 2: Convert to fraction form
    39,112/80,046 = 80,046/x
  3. Step 3: Cross multiply
    39,112x = 80,046 × 80,046
  4. Step 4: Simplify right side
    39,112x = 6,407,362,116
  5. Step 5: Solve for x
    x = 6,407,362,116/39,112
  6. Step 6: Final answer
    x = 163,820.88

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.