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Finding the Third Proportional to 5,648 and 11,780

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Solution

The third proportional to 5,648 and 11,780 is: 24,569.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,648 : 11,780 = 11,780 : x
  2. Step 2: Convert to fraction form
    5,648/11,780 = 11,780/x
  3. Step 3: Cross multiply
    5,648x = 11,780 × 11,780
  4. Step 4: Simplify right side
    5,648x = 138,768,400
  5. Step 5: Solve for x
    x = 138,768,400/5,648
  6. Step 6: Final answer
    x = 24,569.48

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.