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Finding the Third Proportional to 20,512 and 29,331.50

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Solution

The third proportional to 20,512 and 29,331.50 is: 41,943.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512 : 29,331.50 = 29,331.50 : x
  2. Step 2: Convert to fraction form
    20,512/29,331.50 = 29,331.50/x
  3. Step 3: Cross multiply
    20,512x = 29,331.50 × 29,331.50
  4. Step 4: Simplify right side
    20,512x = 860,336,892.25
  5. Step 5: Solve for x
    x = 860,336,892.25/20,512
  6. Step 6: Final answer
    x = 41,943.10

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.