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Finding the Third Proportional to 1,447.75 and 3,167.75

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Solution

The third proportional to 1,447.75 and 3,167.75 is: 6,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.75 : 3,167.75 = 3,167.75 : x
  2. Step 2: Convert to fraction form
    1,447.75/3,167.75 = 3,167.75/x
  3. Step 3: Cross multiply
    1,447.75x = 3,167.75 × 3,167.75
  4. Step 4: Simplify right side
    1,447.75x = 10,034,640.06
  5. Step 5: Solve for x
    x = 10,034,640.06/1,447.75
  6. Step 6: Final answer
    x = 6,931.20

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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.