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Finding the Third Proportional to 3,215.67 and 7,008.05

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Solution

The third proportional to 3,215.67 and 7,008.05 is: 15,272.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.67 : 7,008.05 = 7,008.05 : x
  2. Step 2: Convert to fraction form
    3,215.67/7,008.05 = 7,008.05/x
  3. Step 3: Cross multiply
    3,215.67x = 7,008.05 × 7,008.05
  4. Step 4: Simplify right side
    3,215.67x = 49,112,721.00
  5. Step 5: Solve for x
    x = 49,112,721.00/3,215.67
  6. Step 6: Final answer
    x = 15,272.93

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.