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Finding the Third Proportional to 4,669 and 9,770

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Solution

The third proportional to 4,669 and 9,770 is: 20,443.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,669 : 9,770 = 9,770 : x
  2. Step 2: Convert to fraction form
    4,669/9,770 = 9,770/x
  3. Step 3: Cross multiply
    4,669x = 9,770 × 9,770
  4. Step 4: Simplify right side
    4,669x = 95,452,900
  5. Step 5: Solve for x
    x = 95,452,900/4,669
  6. Step 6: Final answer
    x = 20,443.97

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.