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Finding the Third Proportional to 26,120 and 28,360

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Solution

The third proportional to 26,120 and 28,360 is: 30,792.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,120 : 28,360 = 28,360 : x
  2. Step 2: Convert to fraction form
    26,120/28,360 = 28,360/x
  3. Step 3: Cross multiply
    26,120x = 28,360 × 28,360
  4. Step 4: Simplify right side
    26,120x = 804,289,600
  5. Step 5: Solve for x
    x = 804,289,600/26,120
  6. Step 6: Final answer
    x = 30,792.10

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.