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Finding the Third Proportional to 672 and 1,008

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Solution

The third proportional to 672 and 1,008 is: 1,512

Step by Step Solution

  1. Step 1: Write the proportion equation
    672 : 1,008 = 1,008 : x
  2. Step 2: Convert to fraction form
    672/1,008 = 1,008/x
  3. Step 3: Cross multiply
    672x = 1,008 × 1,008
  4. Step 4: Simplify right side
    672x = 1,016,064
  5. Step 5: Solve for x
    x = 1,016,064/672
  6. Step 6: Final answer
    x = 1,512

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.