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Finding the Third Proportional to 18,204.75 and 28,278

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Solution

The third proportional to 18,204.75 and 28,278 is: 43,925.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,204.75 : 28,278 = 28,278 : x
  2. Step 2: Convert to fraction form
    18,204.75/28,278 = 28,278/x
  3. Step 3: Cross multiply
    18,204.75x = 28,278 × 28,278
  4. Step 4: Simplify right side
    18,204.75x = 799,645,284
  5. Step 5: Solve for x
    x = 799,645,284/18,204.75
  6. Step 6: Final answer
    x = 43,925.09

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.