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Finding the Third Proportional to 897 and 2,119

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Solution

The third proportional to 897 and 2,119 is: 5,005.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    897 : 2,119 = 2,119 : x
  2. Step 2: Convert to fraction form
    897/2,119 = 2,119/x
  3. Step 3: Cross multiply
    897x = 2,119 × 2,119
  4. Step 4: Simplify right side
    897x = 4,490,161
  5. Step 5: Solve for x
    x = 4,490,161/897
  6. Step 6: Final answer
    x = 5,005.75

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.