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Finding the Third Proportional to 38,818 and 84,228

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Solution

The third proportional to 38,818 and 84,228 is: 182,759.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,818 : 84,228 = 84,228 : x
  2. Step 2: Convert to fraction form
    38,818/84,228 = 84,228/x
  3. Step 3: Cross multiply
    38,818x = 84,228 × 84,228
  4. Step 4: Simplify right side
    38,818x = 7,094,355,984
  5. Step 5: Solve for x
    x = 7,094,355,984/38,818
  6. Step 6: Final answer
    x = 182,759.44

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.