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Finding the Third Proportional to 672 and 1,176

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Solution

The third proportional to 672 and 1,176 is: 2,058

Step by Step Solution

  1. Step 1: Write the proportion equation
    672 : 1,176 = 1,176 : x
  2. Step 2: Convert to fraction form
    672/1,176 = 1,176/x
  3. Step 3: Cross multiply
    672x = 1,176 × 1,176
  4. Step 4: Simplify right side
    672x = 1,382,976
  5. Step 5: Solve for x
    x = 1,382,976/672
  6. Step 6: Final answer
    x = 2,058

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Why These Related Problems?

These problems maintain the same ratio (1.75) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.