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Finding the Third Proportional to 746.63 and 1,321.13

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Solution

The third proportional to 746.63 and 1,321.13 is: 2,337.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    746.63 : 1,321.13 = 1,321.13 : x
  2. Step 2: Convert to fraction form
    746.63/1,321.13 = 1,321.13/x
  3. Step 3: Cross multiply
    746.63x = 1,321.13 × 1,321.13
  4. Step 4: Simplify right side
    746.63x = 1,745,371.27
  5. Step 5: Solve for x
    x = 1,745,371.27/746.63
  6. Step 6: Final answer
    x = 2,337.68

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.