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Finding the Third Proportional to 7,219.13 and 17,556.75

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Solution

The third proportional to 7,219.13 and 17,556.75 is: 42,697.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.13 : 17,556.75 = 17,556.75 : x
  2. Step 2: Convert to fraction form
    7,219.13/17,556.75 = 17,556.75/x
  3. Step 3: Cross multiply
    7,219.13x = 17,556.75 × 17,556.75
  4. Step 4: Simplify right side
    7,219.13x = 308,239,470.56
  5. Step 5: Solve for x
    x = 308,239,470.56/7,219.13
  6. Step 6: Final answer
    x = 42,697.62

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Why These Related Problems?

These problems maintain the same ratio (2.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.