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Finding the Third Proportional to 1,912 and 4,750

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Solution

The third proportional to 1,912 and 4,750 is: 11,800.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912 : 4,750 = 4,750 : x
  2. Step 2: Convert to fraction form
    1,912/4,750 = 4,750/x
  3. Step 3: Cross multiply
    1,912x = 4,750 × 4,750
  4. Step 4: Simplify right side
    1,912x = 22,562,500
  5. Step 5: Solve for x
    x = 22,562,500/1,912
  6. Step 6: Final answer
    x = 11,800.47

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Why These Related Problems?

These problems maintain the same ratio (2.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.