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Finding the Third Proportional to 525 and 768.75

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Solution

The third proportional to 525 and 768.75 is: 1,125.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    525 : 768.75 = 768.75 : x
  2. Step 2: Convert to fraction form
    525/768.75 = 768.75/x
  3. Step 3: Cross multiply
    525x = 768.75 × 768.75
  4. Step 4: Simplify right side
    525x = 590,976.56
  5. Step 5: Solve for x
    x = 590,976.56/525
  6. Step 6: Final answer
    x = 1,125.67

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.