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Finding the Third Proportional to 1,818 and 2,416.50

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Solution

The third proportional to 1,818 and 2,416.50 is: 3,212.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818 : 2,416.50 = 2,416.50 : x
  2. Step 2: Convert to fraction form
    1,818/2,416.50 = 2,416.50/x
  3. Step 3: Cross multiply
    1,818x = 2,416.50 × 2,416.50
  4. Step 4: Simplify right side
    1,818x = 5,839,472.25
  5. Step 5: Solve for x
    x = 5,839,472.25/1,818
  6. Step 6: Final answer
    x = 3,212.03

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.