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Finding the Third Proportional to 42,162 and 89,508

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Solution

The third proportional to 42,162 and 89,508 is: 190,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,162 : 89,508 = 89,508 : x
  2. Step 2: Convert to fraction form
    42,162/89,508 = 89,508/x
  3. Step 3: Cross multiply
    42,162x = 89,508 × 89,508
  4. Step 4: Simplify right side
    42,162x = 8,011,682,064
  5. Step 5: Solve for x
    x = 8,011,682,064/42,162
  6. Step 6: Final answer
    x = 190,021.40

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.