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Finding the Third Proportional to 3,269.25 and 7,146

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Solution

The third proportional to 3,269.25 and 7,146 is: 15,619.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,269.25 : 7,146 = 7,146 : x
  2. Step 2: Convert to fraction form
    3,269.25/7,146 = 7,146/x
  3. Step 3: Cross multiply
    3,269.25x = 7,146 × 7,146
  4. Step 4: Simplify right side
    3,269.25x = 51,065,316
  5. Step 5: Solve for x
    x = 51,065,316/3,269.25
  6. Step 6: Final answer
    x = 15,619.89

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.