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Finding the Third Proportional to 5,284 and 9,790

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Solution

The third proportional to 5,284 and 9,790 is: 18,138.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,284 : 9,790 = 9,790 : x
  2. Step 2: Convert to fraction form
    5,284/9,790 = 9,790/x
  3. Step 3: Cross multiply
    5,284x = 9,790 × 9,790
  4. Step 4: Simplify right side
    5,284x = 95,844,100
  5. Step 5: Solve for x
    x = 95,844,100/5,284
  6. Step 6: Final answer
    x = 18,138.55

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.