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Finding the Third Proportional to 7,791 and 17,533

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Solution

The third proportional to 7,791 and 17,533 is: 39,456.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791 : 17,533 = 17,533 : x
  2. Step 2: Convert to fraction form
    7,791/17,533 = 17,533/x
  3. Step 3: Cross multiply
    7,791x = 17,533 × 17,533
  4. Step 4: Simplify right side
    7,791x = 307,406,089
  5. Step 5: Solve for x
    x = 307,406,089/7,791
  6. Step 6: Final answer
    x = 39,456.56

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Why These Related Problems?

These problems maintain the same ratio (2.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.