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Finding the Third Proportional to 1,623.94 and 3,480.19

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Solution

The third proportional to 1,623.94 and 3,480.19 is: 7,458.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623.94 : 3,480.19 = 3,480.19 : x
  2. Step 2: Convert to fraction form
    1,623.94/3,480.19 = 3,480.19/x
  3. Step 3: Cross multiply
    1,623.94x = 3,480.19 × 3,480.19
  4. Step 4: Simplify right side
    1,623.94x = 12,111,705.04
  5. Step 5: Solve for x
    x = 12,111,705.04/1,623.94
  6. Step 6: Final answer
    x = 7,458.23

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.