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Finding the Third Proportional to 3,712.50 and 7,992

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Solution

The third proportional to 3,712.50 and 7,992 is: 17,204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.50 : 7,992 = 7,992 : x
  2. Step 2: Convert to fraction form
    3,712.50/7,992 = 7,992/x
  3. Step 3: Cross multiply
    3,712.50x = 7,992 × 7,992
  4. Step 4: Simplify right side
    3,712.50x = 63,872,064
  5. Step 5: Solve for x
    x = 63,872,064/3,712.50
  6. Step 6: Final answer
    x = 17,204.60

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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.