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Finding the Third Proportional to 4,995 and 7,764.75

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Solution

The third proportional to 4,995 and 7,764.75 is: 12,070.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,995 : 7,764.75 = 7,764.75 : x
  2. Step 2: Convert to fraction form
    4,995/7,764.75 = 7,764.75/x
  3. Step 3: Cross multiply
    4,995x = 7,764.75 × 7,764.75
  4. Step 4: Simplify right side
    4,995x = 60,291,342.56
  5. Step 5: Solve for x
    x = 60,291,342.56/4,995
  6. Step 6: Final answer
    x = 12,070.34

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.