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Finding the Third Proportional to 12,968 and 20,382

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Solution

The third proportional to 12,968 and 20,382 is: 32,034.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,968 : 20,382 = 20,382 : x
  2. Step 2: Convert to fraction form
    12,968/20,382 = 20,382/x
  3. Step 3: Cross multiply
    12,968x = 20,382 × 20,382
  4. Step 4: Simplify right side
    12,968x = 415,425,924
  5. Step 5: Solve for x
    x = 415,425,924/12,968
  6. Step 6: Final answer
    x = 32,034.69

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.