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Finding the Third Proportional to 3,520 and 7,576

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Solution

The third proportional to 3,520 and 7,576 is: 16,305.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520 : 7,576 = 7,576 : x
  2. Step 2: Convert to fraction form
    3,520/7,576 = 7,576/x
  3. Step 3: Cross multiply
    3,520x = 7,576 × 7,576
  4. Step 4: Simplify right side
    3,520x = 57,395,776
  5. Step 5: Solve for x
    x = 57,395,776/3,520
  6. Step 6: Final answer
    x = 16,305.62

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.