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Finding the Third Proportional to 2,021 and 2,951.75

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Solution

The third proportional to 2,021 and 2,951.75 is: 4,311.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021 : 2,951.75 = 2,951.75 : x
  2. Step 2: Convert to fraction form
    2,021/2,951.75 = 2,951.75/x
  3. Step 3: Cross multiply
    2,021x = 2,951.75 × 2,951.75
  4. Step 4: Simplify right side
    2,021x = 8,712,828.06
  5. Step 5: Solve for x
    x = 8,712,828.06/2,021
  6. Step 6: Final answer
    x = 4,311.15

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.