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Finding the Third Proportional to 75,380 and 162,424

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Solution

The third proportional to 75,380 and 162,424 is: 349,980.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,380 : 162,424 = 162,424 : x
  2. Step 2: Convert to fraction form
    75,380/162,424 = 162,424/x
  3. Step 3: Cross multiply
    75,380x = 162,424 × 162,424
  4. Step 4: Simplify right side
    75,380x = 26,381,555,776
  5. Step 5: Solve for x
    x = 26,381,555,776/75,380
  6. Step 6: Final answer
    x = 349,980.84

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.