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Finding the Third Proportional to 7,060.85 and 15,215.20

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Solution

The third proportional to 7,060.85 and 15,215.20 is: 32,786.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,060.85 : 15,215.20 = 15,215.20 : x
  2. Step 2: Convert to fraction form
    7,060.85/15,215.20 = 15,215.20/x
  3. Step 3: Cross multiply
    7,060.85x = 15,215.20 × 15,215.20
  4. Step 4: Simplify right side
    7,060.85x = 231,502,406.14
  5. Step 5: Solve for x
    x = 231,502,406.14/7,060.85
  6. Step 6: Final answer
    x = 32,786.75

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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.