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Finding the Third Proportional to 1,072.69 and 1,545.75

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Solution

The third proportional to 1,072.69 and 1,545.75 is: 2,227.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072.69 : 1,545.75 = 1,545.75 : x
  2. Step 2: Convert to fraction form
    1,072.69/1,545.75 = 1,545.75/x
  3. Step 3: Cross multiply
    1,072.69x = 1,545.75 × 1,545.75
  4. Step 4: Simplify right side
    1,072.69x = 2,389,343.06
  5. Step 5: Solve for x
    x = 2,389,343.06/1,072.69
  6. Step 6: Final answer
    x = 2,227.44

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.