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Finding the Third Proportional to 7,022 and 15,421

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Solution

The third proportional to 7,022 and 15,421 is: 33,866.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,022 : 15,421 = 15,421 : x
  2. Step 2: Convert to fraction form
    7,022/15,421 = 15,421/x
  3. Step 3: Cross multiply
    7,022x = 15,421 × 15,421
  4. Step 4: Simplify right side
    7,022x = 237,807,241
  5. Step 5: Solve for x
    x = 237,807,241/7,022
  6. Step 6: Final answer
    x = 33,866.03

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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.