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Finding the Third Proportional to 244.50 and 661.88

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Solution

The third proportional to 244.50 and 661.88 is: 1,791.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.50 : 661.88 = 661.88 : x
  2. Step 2: Convert to fraction form
    244.50/661.88 = 661.88/x
  3. Step 3: Cross multiply
    244.50x = 661.88 × 661.88
  4. Step 4: Simplify right side
    244.50x = 438,078.52
  5. Step 5: Solve for x
    x = 438,078.52/244.50
  6. Step 6: Final answer
    x = 1,791.73

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Why These Related Problems?

These problems maintain the same ratio (2.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.