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Finding the Third Proportional to 5,777 and 12,590

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Solution

The third proportional to 5,777 and 12,590 is: 27,437.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,777 : 12,590 = 12,590 : x
  2. Step 2: Convert to fraction form
    5,777/12,590 = 12,590/x
  3. Step 3: Cross multiply
    5,777x = 12,590 × 12,590
  4. Step 4: Simplify right side
    5,777x = 158,508,100
  5. Step 5: Solve for x
    x = 158,508,100/5,777
  6. Step 6: Final answer
    x = 27,437.79

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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.