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Finding the Third Proportional to 4,879.13 and 7,264.69

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Solution

The third proportional to 4,879.13 and 7,264.69 is: 10,816.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.13 : 7,264.69 = 7,264.69 : x
  2. Step 2: Convert to fraction form
    4,879.13/7,264.69 = 7,264.69/x
  3. Step 3: Cross multiply
    4,879.13x = 7,264.69 × 7,264.69
  4. Step 4: Simplify right side
    4,879.13x = 52,775,684.47
  5. Step 5: Solve for x
    x = 52,775,684.47/4,879.13
  6. Step 6: Final answer
    x = 10,816.63

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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.