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Finding the Third Proportional to 8,265 and 12,708

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Solution

The third proportional to 8,265 and 12,708 is: 19,539.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,265 : 12,708 = 12,708 : x
  2. Step 2: Convert to fraction form
    8,265/12,708 = 12,708/x
  3. Step 3: Cross multiply
    8,265x = 12,708 × 12,708
  4. Step 4: Simplify right side
    8,265x = 161,493,264
  5. Step 5: Solve for x
    x = 161,493,264/8,265
  6. Step 6: Final answer
    x = 19,539.41

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.