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Finding the Third Proportional to 1,866 and 4,104

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Solution

The third proportional to 1,866 and 4,104 is: 9,026.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866 : 4,104 = 4,104 : x
  2. Step 2: Convert to fraction form
    1,866/4,104 = 4,104/x
  3. Step 3: Cross multiply
    1,866x = 4,104 × 4,104
  4. Step 4: Simplify right side
    1,866x = 16,842,816
  5. Step 5: Solve for x
    x = 16,842,816/1,866
  6. Step 6: Final answer
    x = 9,026.16

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.