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Finding the Third Proportional to 2,848 and 5,680

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Solution

The third proportional to 2,848 and 5,680 is: 11,328.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,848 : 5,680 = 5,680 : x
  2. Step 2: Convert to fraction form
    2,848/5,680 = 5,680/x
  3. Step 3: Cross multiply
    2,848x = 5,680 × 5,680
  4. Step 4: Simplify right side
    2,848x = 32,262,400
  5. Step 5: Solve for x
    x = 32,262,400/2,848
  6. Step 6: Final answer
    x = 11,328.09

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Why These Related Problems?

These problems maintain the same ratio (1.99) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.