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Finding the Third Proportional to 31,262.63 and 68,265

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Solution

The third proportional to 31,262.63 and 68,265 is: 149,063.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,262.63 : 68,265 = 68,265 : x
  2. Step 2: Convert to fraction form
    31,262.63/68,265 = 68,265/x
  3. Step 3: Cross multiply
    31,262.63x = 68,265 × 68,265
  4. Step 4: Simplify right side
    31,262.63x = 4,660,110,225
  5. Step 5: Solve for x
    x = 4,660,110,225/31,262.63
  6. Step 6: Final answer
    x = 149,063.31

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.