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Finding the Third Proportional to 3,192 and 7,012.88

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Solution

The third proportional to 3,192 and 7,012.88 is: 15,407.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,192 : 7,012.88 = 7,012.88 : x
  2. Step 2: Convert to fraction form
    3,192/7,012.88 = 7,012.88/x
  3. Step 3: Cross multiply
    3,192x = 7,012.88 × 7,012.88
  4. Step 4: Simplify right side
    3,192x = 49,180,415.77
  5. Step 5: Solve for x
    x = 49,180,415.77/3,192
  6. Step 6: Final answer
    x = 15,407.40

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.