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Finding the Third Proportional to 2,489.50 and 3,462

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Solution

The third proportional to 2,489.50 and 3,462 is: 4,814.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.50 : 3,462 = 3,462 : x
  2. Step 2: Convert to fraction form
    2,489.50/3,462 = 3,462/x
  3. Step 3: Cross multiply
    2,489.50x = 3,462 × 3,462
  4. Step 4: Simplify right side
    2,489.50x = 11,985,444
  5. Step 5: Solve for x
    x = 11,985,444/2,489.50
  6. Step 6: Final answer
    x = 4,814.40

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.