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Finding the Third Proportional to 1,502 and 3,119

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Solution

The third proportional to 1,502 and 3,119 is: 6,476.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,502 : 3,119 = 3,119 : x
  2. Step 2: Convert to fraction form
    1,502/3,119 = 3,119/x
  3. Step 3: Cross multiply
    1,502x = 3,119 × 3,119
  4. Step 4: Simplify right side
    1,502x = 9,728,161
  5. Step 5: Solve for x
    x = 9,728,161/1,502
  6. Step 6: Final answer
    x = 6,476.80

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.