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Finding the Third Proportional to 28,936 and 43,715

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Solution

The third proportional to 28,936 and 43,715 is: 66,042.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,936 : 43,715 = 43,715 : x
  2. Step 2: Convert to fraction form
    28,936/43,715 = 43,715/x
  3. Step 3: Cross multiply
    28,936x = 43,715 × 43,715
  4. Step 4: Simplify right side
    28,936x = 1,911,001,225
  5. Step 5: Solve for x
    x = 1,911,001,225/28,936
  6. Step 6: Final answer
    x = 66,042.34

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.