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Finding the Third Proportional to 719.75 and 948.38

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Solution

The third proportional to 719.75 and 948.38 is: 1,249.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    719.75 : 948.38 = 948.38 : x
  2. Step 2: Convert to fraction form
    719.75/948.38 = 948.38/x
  3. Step 3: Cross multiply
    719.75x = 948.38 × 948.38
  4. Step 4: Simplify right side
    719.75x = 899,415.14
  5. Step 5: Solve for x
    x = 899,415.14/719.75
  6. Step 6: Final answer
    x = 1,249.62

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.