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Finding the Third Proportional to 2,017 and 4,430

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Solution

The third proportional to 2,017 and 4,430 is: 9,729.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,017 : 4,430 = 4,430 : x
  2. Step 2: Convert to fraction form
    2,017/4,430 = 4,430/x
  3. Step 3: Cross multiply
    2,017x = 4,430 × 4,430
  4. Step 4: Simplify right side
    2,017x = 19,624,900
  5. Step 5: Solve for x
    x = 19,624,900/2,017
  6. Step 6: Final answer
    x = 9,729.75

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.