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Finding the Third Proportional to 198,034.75 and 427,635

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Solution

The third proportional to 198,034.75 and 427,635 is: 923,432.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,034.75 : 427,635 = 427,635 : x
  2. Step 2: Convert to fraction form
    198,034.75/427,635 = 427,635/x
  3. Step 3: Cross multiply
    198,034.75x = 427,635 × 427,635
  4. Step 4: Simplify right side
    198,034.75x = 182,871,693,225
  5. Step 5: Solve for x
    x = 182,871,693,225/198,034.75
  6. Step 6: Final answer
    x = 923,432.34

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.