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Finding the Third Proportional to 4,765 and 9,170

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Solution

The third proportional to 4,765 and 9,170 is: 17,647.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,765 : 9,170 = 9,170 : x
  2. Step 2: Convert to fraction form
    4,765/9,170 = 9,170/x
  3. Step 3: Cross multiply
    4,765x = 9,170 × 9,170
  4. Step 4: Simplify right side
    4,765x = 84,088,900
  5. Step 5: Solve for x
    x = 84,088,900/4,765
  6. Step 6: Final answer
    x = 17,647.20

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Why These Related Problems?

These problems maintain the same ratio (1.92) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.