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Finding the Third Proportional to 1,447.50 and 3,165

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Solution

The third proportional to 1,447.50 and 3,165 is: 6,920.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.50 : 3,165 = 3,165 : x
  2. Step 2: Convert to fraction form
    1,447.50/3,165 = 3,165/x
  3. Step 3: Cross multiply
    1,447.50x = 3,165 × 3,165
  4. Step 4: Simplify right side
    1,447.50x = 10,017,225
  5. Step 5: Solve for x
    x = 10,017,225/1,447.50
  6. Step 6: Final answer
    x = 6,920.36

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.