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Finding the Third Proportional to 7,430 and 16,021

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Solution

The third proportional to 7,430 and 16,021 is: 34,545.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,430 : 16,021 = 16,021 : x
  2. Step 2: Convert to fraction form
    7,430/16,021 = 16,021/x
  3. Step 3: Cross multiply
    7,430x = 16,021 × 16,021
  4. Step 4: Simplify right side
    7,430x = 256,672,441
  5. Step 5: Solve for x
    x = 256,672,441/7,430
  6. Step 6: Final answer
    x = 34,545.42

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.