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Finding the Third Proportional to 367.88 and 653.63

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Solution

The third proportional to 367.88 and 653.63 is: 1,161.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.88 : 653.63 = 653.63 : x
  2. Step 2: Convert to fraction form
    367.88/653.63 = 653.63/x
  3. Step 3: Cross multiply
    367.88x = 653.63 × 653.63
  4. Step 4: Simplify right side
    367.88x = 427,225.64
  5. Step 5: Solve for x
    x = 427,225.64/367.88
  6. Step 6: Final answer
    x = 1,161.33

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.