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Finding the Third Proportional to 3,260.25 and 7,117.88

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Solution

The third proportional to 3,260.25 and 7,117.88 is: 15,539.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.25 : 7,117.88 = 7,117.88 : x
  2. Step 2: Convert to fraction form
    3,260.25/7,117.88 = 7,117.88/x
  3. Step 3: Cross multiply
    3,260.25x = 7,117.88 × 7,117.88
  4. Step 4: Simplify right side
    3,260.25x = 50,664,144.52
  5. Step 5: Solve for x
    x = 50,664,144.52/3,260.25
  6. Step 6: Final answer
    x = 15,539.96

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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.