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Finding the Third Proportional to 767.50 and 1,174

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Solution

The third proportional to 767.50 and 1,174 is: 1,795.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    767.50 : 1,174 = 1,174 : x
  2. Step 2: Convert to fraction form
    767.50/1,174 = 1,174/x
  3. Step 3: Cross multiply
    767.50x = 1,174 × 1,174
  4. Step 4: Simplify right side
    767.50x = 1,378,276
  5. Step 5: Solve for x
    x = 1,378,276/767.50
  6. Step 6: Final answer
    x = 1,795.80

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.