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Finding the Third Proportional to 27,284 and 57,320

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Solution

The third proportional to 27,284 and 57,320 is: 120,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,284 : 57,320 = 57,320 : x
  2. Step 2: Convert to fraction form
    27,284/57,320 = 57,320/x
  3. Step 3: Cross multiply
    27,284x = 57,320 × 57,320
  4. Step 4: Simplify right side
    27,284x = 3,285,582,400
  5. Step 5: Solve for x
    x = 3,285,582,400/27,284
  6. Step 6: Final answer
    x = 120,421.58

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.