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Finding the Third Proportional to 2,125 and 2,440

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Solution

The third proportional to 2,125 and 2,440 is: 2,801.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125 : 2,440 = 2,440 : x
  2. Step 2: Convert to fraction form
    2,125/2,440 = 2,440/x
  3. Step 3: Cross multiply
    2,125x = 2,440 × 2,440
  4. Step 4: Simplify right side
    2,125x = 5,953,600
  5. Step 5: Solve for x
    x = 5,953,600/2,125
  6. Step 6: Final answer
    x = 2,801.69

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.