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Finding the Third Proportional to 2,197.13 and 2,666.67

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Solution

The third proportional to 2,197.13 and 2,666.67 is: 3,236.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.13 : 2,666.67 = 2,666.67 : x
  2. Step 2: Convert to fraction form
    2,197.13/2,666.67 = 2,666.67/x
  3. Step 3: Cross multiply
    2,197.13x = 2,666.67 × 2,666.67
  4. Step 4: Simplify right side
    2,197.13x = 7,111,138.89
  5. Step 5: Solve for x
    x = 7,111,138.89/2,197.13
  6. Step 6: Final answer
    x = 3,236.57

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.