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Finding the Third Proportional to 3,102 and 4,048

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Solution

The third proportional to 3,102 and 4,048 is: 5,282.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102 : 4,048 = 4,048 : x
  2. Step 2: Convert to fraction form
    3,102/4,048 = 4,048/x
  3. Step 3: Cross multiply
    3,102x = 4,048 × 4,048
  4. Step 4: Simplify right side
    3,102x = 16,386,304
  5. Step 5: Solve for x
    x = 16,386,304/3,102
  6. Step 6: Final answer
    x = 5,282.50

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.