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Finding the Third Proportional to 764.50 and 1,201

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Solution

The third proportional to 764.50 and 1,201 is: 1,886.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    764.50 : 1,201 = 1,201 : x
  2. Step 2: Convert to fraction form
    764.50/1,201 = 1,201/x
  3. Step 3: Cross multiply
    764.50x = 1,201 × 1,201
  4. Step 4: Simplify right side
    764.50x = 1,442,401
  5. Step 5: Solve for x
    x = 1,442,401/764.50
  6. Step 6: Final answer
    x = 1,886.72

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.