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Finding the Third Proportional to 4,629.75 and 7,169.63

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Solution

The third proportional to 4,629.75 and 7,169.63 is: 11,102.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,629.75 : 7,169.63 = 7,169.63 : x
  2. Step 2: Convert to fraction form
    4,629.75/7,169.63 = 7,169.63/x
  3. Step 3: Cross multiply
    4,629.75x = 7,169.63 × 7,169.63
  4. Step 4: Simplify right side
    4,629.75x = 51,403,522.64
  5. Step 5: Solve for x
    x = 51,403,522.64/4,629.75
  6. Step 6: Final answer
    x = 11,102.87

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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.