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Finding the Third Proportional to 1,134 and 1,605.25

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Solution

The third proportional to 1,134 and 1,605.25 is: 2,272.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134 : 1,605.25 = 1,605.25 : x
  2. Step 2: Convert to fraction form
    1,134/1,605.25 = 1,605.25/x
  3. Step 3: Cross multiply
    1,134x = 1,605.25 × 1,605.25
  4. Step 4: Simplify right side
    1,134x = 2,576,827.56
  5. Step 5: Solve for x
    x = 2,576,827.56/1,134
  6. Step 6: Final answer
    x = 2,272.33

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.