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Finding the Third Proportional to 970 and 2,162

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Solution

The third proportional to 970 and 2,162 is: 4,818.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    970 : 2,162 = 2,162 : x
  2. Step 2: Convert to fraction form
    970/2,162 = 2,162/x
  3. Step 3: Cross multiply
    970x = 2,162 × 2,162
  4. Step 4: Simplify right side
    970x = 4,674,244
  5. Step 5: Solve for x
    x = 4,674,244/970
  6. Step 6: Final answer
    x = 4,818.81

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.