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Finding the Third Proportional to 2,190.50 and 4,768

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Solution

The third proportional to 2,190.50 and 4,768 is: 10,378.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.50 : 4,768 = 4,768 : x
  2. Step 2: Convert to fraction form
    2,190.50/4,768 = 4,768/x
  3. Step 3: Cross multiply
    2,190.50x = 4,768 × 4,768
  4. Step 4: Simplify right side
    2,190.50x = 22,733,824
  5. Step 5: Solve for x
    x = 22,733,824/2,190.50
  6. Step 6: Final answer
    x = 10,378.37

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.