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Finding the Third Proportional to 8,239 and 12,048

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Solution

The third proportional to 8,239 and 12,048 is: 17,617.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,239 : 12,048 = 12,048 : x
  2. Step 2: Convert to fraction form
    8,239/12,048 = 12,048/x
  3. Step 3: Cross multiply
    8,239x = 12,048 × 12,048
  4. Step 4: Simplify right side
    8,239x = 145,154,304
  5. Step 5: Solve for x
    x = 145,154,304/8,239
  6. Step 6: Final answer
    x = 17,617.95

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.