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Finding the Third Proportional to 28,120 and 57,048

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Solution

The third proportional to 28,120 and 57,048 is: 115,735.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,120 : 57,048 = 57,048 : x
  2. Step 2: Convert to fraction form
    28,120/57,048 = 57,048/x
  3. Step 3: Cross multiply
    28,120x = 57,048 × 57,048
  4. Step 4: Simplify right side
    28,120x = 3,254,474,304
  5. Step 5: Solve for x
    x = 3,254,474,304/28,120
  6. Step 6: Final answer
    x = 115,735.22

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.