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Finding the Third Proportional to 5,368 and 12,718

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Solution

The third proportional to 5,368 and 12,718 is: 30,131.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,368 : 12,718 = 12,718 : x
  2. Step 2: Convert to fraction form
    5,368/12,718 = 12,718/x
  3. Step 3: Cross multiply
    5,368x = 12,718 × 12,718
  4. Step 4: Simplify right side
    5,368x = 161,747,524
  5. Step 5: Solve for x
    x = 161,747,524/5,368
  6. Step 6: Final answer
    x = 30,131.80

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.