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Finding the Third Proportional to 789.75 and 1,710.49

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Solution

The third proportional to 789.75 and 1,710.49 is: 3,704.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    789.75 : 1,710.49 = 1,710.49 : x
  2. Step 2: Convert to fraction form
    789.75/1,710.49 = 1,710.49/x
  3. Step 3: Cross multiply
    789.75x = 1,710.49 × 1,710.49
  4. Step 4: Simplify right side
    789.75x = 2,925,783.52
  5. Step 5: Solve for x
    x = 2,925,783.52/789.75
  6. Step 6: Final answer
    x = 3,704.70

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.