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Finding the Third Proportional to 38,216 and 79,112

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Solution

The third proportional to 38,216 and 79,112 is: 163,771.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,216 : 79,112 = 79,112 : x
  2. Step 2: Convert to fraction form
    38,216/79,112 = 79,112/x
  3. Step 3: Cross multiply
    38,216x = 79,112 × 79,112
  4. Step 4: Simplify right side
    38,216x = 6,258,708,544
  5. Step 5: Solve for x
    x = 6,258,708,544/38,216
  6. Step 6: Final answer
    x = 163,771.94

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.