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Finding the Third Proportional to 3,619.69 and 4,632.19

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Solution

The third proportional to 3,619.69 and 4,632.19 is: 5,927.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.69 : 4,632.19 = 4,632.19 : x
  2. Step 2: Convert to fraction form
    3,619.69/4,632.19 = 4,632.19/x
  3. Step 3: Cross multiply
    3,619.69x = 4,632.19 × 4,632.19
  4. Step 4: Simplify right side
    3,619.69x = 21,457,161.04
  5. Step 5: Solve for x
    x = 21,457,161.04/3,619.69
  6. Step 6: Final answer
    x = 5,927.90

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.