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Finding the Third Proportional to 2,108.50 and 4,508

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Solution

The third proportional to 2,108.50 and 4,508 is: 9,638.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.50 : 4,508 = 4,508 : x
  2. Step 2: Convert to fraction form
    2,108.50/4,508 = 4,508/x
  3. Step 3: Cross multiply
    2,108.50x = 4,508 × 4,508
  4. Step 4: Simplify right side
    2,108.50x = 20,322,064
  5. Step 5: Solve for x
    x = 20,322,064/2,108.50
  6. Step 6: Final answer
    x = 9,638.16

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.