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Finding the Third Proportional to 953.44 and 1,386.70

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Solution

The third proportional to 953.44 and 1,386.70 is: 2,016.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.44 : 1,386.70 = 1,386.70 : x
  2. Step 2: Convert to fraction form
    953.44/1,386.70 = 1,386.70/x
  3. Step 3: Cross multiply
    953.44x = 1,386.70 × 1,386.70
  4. Step 4: Simplify right side
    953.44x = 1,922,945.56
  5. Step 5: Solve for x
    x = 1,922,945.56/953.44
  6. Step 6: Final answer
    x = 2,016.86

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.