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Finding the Third Proportional to 53,291.25 and 82,512

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Solution

The third proportional to 53,291.25 and 82,512 is: 127,755.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,291.25 : 82,512 = 82,512 : x
  2. Step 2: Convert to fraction form
    53,291.25/82,512 = 82,512/x
  3. Step 3: Cross multiply
    53,291.25x = 82,512 × 82,512
  4. Step 4: Simplify right side
    53,291.25x = 6,808,230,144
  5. Step 5: Solve for x
    x = 6,808,230,144/53,291.25
  6. Step 6: Final answer
    x = 127,755.12

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.