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Finding the Third Proportional to 28,512 and 61,632

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Solution

The third proportional to 28,512 and 61,632 is: 133,224.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512 : 61,632 = 61,632 : x
  2. Step 2: Convert to fraction form
    28,512/61,632 = 61,632/x
  3. Step 3: Cross multiply
    28,512x = 61,632 × 61,632
  4. Step 4: Simplify right side
    28,512x = 3,798,503,424
  5. Step 5: Solve for x
    x = 3,798,503,424/28,512
  6. Step 6: Final answer
    x = 133,224.73

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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.