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Finding the Third Proportional to 6,090.75 and 7,717.50

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Solution

The third proportional to 6,090.75 and 7,717.50 is: 9,778.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,090.75 : 7,717.50 = 7,717.50 : x
  2. Step 2: Convert to fraction form
    6,090.75/7,717.50 = 7,717.50/x
  3. Step 3: Cross multiply
    6,090.75x = 7,717.50 × 7,717.50
  4. Step 4: Simplify right side
    6,090.75x = 59,559,806.25
  5. Step 5: Solve for x
    x = 59,559,806.25/6,090.75
  6. Step 6: Final answer
    x = 9,778.73

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Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.