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Finding the Third Proportional to 901.97 and 1,321.69

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Solution

The third proportional to 901.97 and 1,321.69 is: 1,936.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.97 : 1,321.69 = 1,321.69 : x
  2. Step 2: Convert to fraction form
    901.97/1,321.69 = 1,321.69/x
  3. Step 3: Cross multiply
    901.97x = 1,321.69 × 1,321.69
  4. Step 4: Simplify right side
    901.97x = 1,746,857.85
  5. Step 5: Solve for x
    x = 1,746,857.85/901.97
  6. Step 6: Final answer
    x = 1,936.72

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.