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Finding the Third Proportional to 322.13 and 673.50

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Solution

The third proportional to 322.13 and 673.50 is: 1,408.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.13 : 673.50 = 673.50 : x
  2. Step 2: Convert to fraction form
    322.13/673.50 = 673.50/x
  3. Step 3: Cross multiply
    322.13x = 673.50 × 673.50
  4. Step 4: Simplify right side
    322.13x = 453,602.25
  5. Step 5: Solve for x
    x = 453,602.25/322.13
  6. Step 6: Final answer
    x = 1,408.16

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.