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Finding the Third Proportional to 838.69 and 1,177.03

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Solution

The third proportional to 838.69 and 1,177.03 is: 1,651.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    838.69 : 1,177.03 = 1,177.03 : x
  2. Step 2: Convert to fraction form
    838.69/1,177.03 = 1,177.03/x
  3. Step 3: Cross multiply
    838.69x = 1,177.03 × 1,177.03
  4. Step 4: Simplify right side
    838.69x = 1,385,402.56
  5. Step 5: Solve for x
    x = 1,385,402.56/838.69
  6. Step 6: Final answer
    x = 1,651.87

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.