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Finding the Third Proportional to 1,884 and 4,890

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Solution

The third proportional to 1,884 and 4,890 is: 12,692.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,884 : 4,890 = 4,890 : x
  2. Step 2: Convert to fraction form
    1,884/4,890 = 4,890/x
  3. Step 3: Cross multiply
    1,884x = 4,890 × 4,890
  4. Step 4: Simplify right side
    1,884x = 23,912,100
  5. Step 5: Solve for x
    x = 23,912,100/1,884
  6. Step 6: Final answer
    x = 12,692.20

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.