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Finding the Third Proportional to 4,548 and 7,879.50

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Solution

The third proportional to 4,548 and 7,879.50 is: 13,651.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,548 : 7,879.50 = 7,879.50 : x
  2. Step 2: Convert to fraction form
    4,548/7,879.50 = 7,879.50/x
  3. Step 3: Cross multiply
    4,548x = 7,879.50 × 7,879.50
  4. Step 4: Simplify right side
    4,548x = 62,086,520.25
  5. Step 5: Solve for x
    x = 62,086,520.25/4,548
  6. Step 6: Final answer
    x = 13,651.39

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Why These Related Problems?

These problems maintain the same ratio (1.73) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.