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Finding the Third Proportional to 3,057.75 and 7,281.56

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Solution

The third proportional to 3,057.75 and 7,281.56 is: 17,339.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.75 : 7,281.56 = 7,281.56 : x
  2. Step 2: Convert to fraction form
    3,057.75/7,281.56 = 7,281.56/x
  3. Step 3: Cross multiply
    3,057.75x = 7,281.56 × 7,281.56
  4. Step 4: Simplify right side
    3,057.75x = 53,021,152.44
  5. Step 5: Solve for x
    x = 53,021,152.44/3,057.75
  6. Step 6: Final answer
    x = 17,339.92

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Why These Related Problems?

These problems maintain the same ratio (2.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.