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Finding the Third Proportional to 994.78 and 1,365.61

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Solution

The third proportional to 994.78 and 1,365.61 is: 1,874.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.78 : 1,365.61 = 1,365.61 : x
  2. Step 2: Convert to fraction form
    994.78/1,365.61 = 1,365.61/x
  3. Step 3: Cross multiply
    994.78x = 1,365.61 × 1,365.61
  4. Step 4: Simplify right side
    994.78x = 1,864,888.97
  5. Step 5: Solve for x
    x = 1,864,888.97/994.78
  6. Step 6: Final answer
    x = 1,874.67

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.