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Finding the Third Proportional to 11,402 and 18,057

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Solution

The third proportional to 11,402 and 18,057 is: 28,596.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,402 : 18,057 = 18,057 : x
  2. Step 2: Convert to fraction form
    11,402/18,057 = 18,057/x
  3. Step 3: Cross multiply
    11,402x = 18,057 × 18,057
  4. Step 4: Simplify right side
    11,402x = 326,055,249
  5. Step 5: Solve for x
    x = 326,055,249/11,402
  6. Step 6: Final answer
    x = 28,596.32

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.