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Finding the Third Proportional to 4,769 and 7,126

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Solution

The third proportional to 4,769 and 7,126 is: 10,647.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,769 : 7,126 = 7,126 : x
  2. Step 2: Convert to fraction form
    4,769/7,126 = 7,126/x
  3. Step 3: Cross multiply
    4,769x = 7,126 × 7,126
  4. Step 4: Simplify right side
    4,769x = 50,779,876
  5. Step 5: Solve for x
    x = 50,779,876/4,769
  6. Step 6: Final answer
    x = 10,647.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.