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Finding the Third Proportional to 5,566 and 7,782

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Solution

The third proportional to 5,566 and 7,782 is: 10,880.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,566 : 7,782 = 7,782 : x
  2. Step 2: Convert to fraction form
    5,566/7,782 = 7,782/x
  3. Step 3: Cross multiply
    5,566x = 7,782 × 7,782
  4. Step 4: Simplify right side
    5,566x = 60,559,524
  5. Step 5: Solve for x
    x = 60,559,524/5,566
  6. Step 6: Final answer
    x = 10,880.26

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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.