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Finding the Third Proportional to 18,444 and 28,206

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Solution

The third proportional to 18,444 and 28,206 is: 43,134.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,444 : 28,206 = 28,206 : x
  2. Step 2: Convert to fraction form
    18,444/28,206 = 28,206/x
  3. Step 3: Cross multiply
    18,444x = 28,206 × 28,206
  4. Step 4: Simplify right side
    18,444x = 795,578,436
  5. Step 5: Solve for x
    x = 795,578,436/18,444
  6. Step 6: Final answer
    x = 43,134.81

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.