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Finding the Third Proportional to 1,628 and 2,202

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Solution

The third proportional to 1,628 and 2,202 is: 2,978.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628 : 2,202 = 2,202 : x
  2. Step 2: Convert to fraction form
    1,628/2,202 = 2,202/x
  3. Step 3: Cross multiply
    1,628x = 2,202 × 2,202
  4. Step 4: Simplify right side
    1,628x = 4,848,804
  5. Step 5: Solve for x
    x = 4,848,804/1,628
  6. Step 6: Final answer
    x = 2,978.38

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.