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Finding the Third Proportional to 5,620 and 11,984

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Solution

The third proportional to 5,620 and 11,984 is: 25,554.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620 : 11,984 = 11,984 : x
  2. Step 2: Convert to fraction form
    5,620/11,984 = 11,984/x
  3. Step 3: Cross multiply
    5,620x = 11,984 × 11,984
  4. Step 4: Simplify right side
    5,620x = 143,616,256
  5. Step 5: Solve for x
    x = 143,616,256/5,620
  6. Step 6: Final answer
    x = 25,554.49

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.