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Finding the Third Proportional to 6,412 and 9,718

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Solution

The third proportional to 6,412 and 9,718 is: 14,728.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,412 : 9,718 = 9,718 : x
  2. Step 2: Convert to fraction form
    6,412/9,718 = 9,718/x
  3. Step 3: Cross multiply
    6,412x = 9,718 × 9,718
  4. Step 4: Simplify right side
    6,412x = 94,439,524
  5. Step 5: Solve for x
    x = 94,439,524/6,412
  6. Step 6: Final answer
    x = 14,728.56

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.