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Finding the Third Proportional to 5,508 and 7,710

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Solution

The third proportional to 5,508 and 7,710 is: 10,792.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,508 : 7,710 = 7,710 : x
  2. Step 2: Convert to fraction form
    5,508/7,710 = 7,710/x
  3. Step 3: Cross multiply
    5,508x = 7,710 × 7,710
  4. Step 4: Simplify right side
    5,508x = 59,444,100
  5. Step 5: Solve for x
    x = 59,444,100/5,508
  6. Step 6: Final answer
    x = 10,792.32

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.