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Finding the Third Proportional to 4,774 and 7,614

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Solution

The third proportional to 4,774 and 7,614 is: 12,143.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,774 : 7,614 = 7,614 : x
  2. Step 2: Convert to fraction form
    4,774/7,614 = 7,614/x
  3. Step 3: Cross multiply
    4,774x = 7,614 × 7,614
  4. Step 4: Simplify right side
    4,774x = 57,972,996
  5. Step 5: Solve for x
    x = 57,972,996/4,774
  6. Step 6: Final answer
    x = 12,143.48

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.