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Finding the Third Proportional to 1,485 and 2,258

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Solution

The third proportional to 1,485 and 2,258 is: 3,433.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485 : 2,258 = 2,258 : x
  2. Step 2: Convert to fraction form
    1,485/2,258 = 2,258/x
  3. Step 3: Cross multiply
    1,485x = 2,258 × 2,258
  4. Step 4: Simplify right side
    1,485x = 5,098,564
  5. Step 5: Solve for x
    x = 5,098,564/1,485
  6. Step 6: Final answer
    x = 3,433.38

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.