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Finding the Third Proportional to 5,089.50 and 7,659

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Solution

The third proportional to 5,089.50 and 7,659 is: 11,525.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,089.50 : 7,659 = 7,659 : x
  2. Step 2: Convert to fraction form
    5,089.50/7,659 = 7,659/x
  3. Step 3: Cross multiply
    5,089.50x = 7,659 × 7,659
  4. Step 4: Simplify right side
    5,089.50x = 58,660,281
  5. Step 5: Solve for x
    x = 58,660,281/5,089.50
  6. Step 6: Final answer
    x = 11,525.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.