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Finding the Third Proportional to 19,217 and 40,632

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Solution

The third proportional to 19,217 and 40,632 is: 85,911.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,217 : 40,632 = 40,632 : x
  2. Step 2: Convert to fraction form
    19,217/40,632 = 40,632/x
  3. Step 3: Cross multiply
    19,217x = 40,632 × 40,632
  4. Step 4: Simplify right side
    19,217x = 1,650,959,424
  5. Step 5: Solve for x
    x = 1,650,959,424/19,217
  6. Step 6: Final answer
    x = 85,911.40

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.