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Finding the Third Proportional to 1,485.19 and 3,268.13

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Solution

The third proportional to 1,485.19 and 3,268.13 is: 7,191.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485.19 : 3,268.13 = 3,268.13 : x
  2. Step 2: Convert to fraction form
    1,485.19/3,268.13 = 3,268.13/x
  3. Step 3: Cross multiply
    1,485.19x = 3,268.13 × 3,268.13
  4. Step 4: Simplify right side
    1,485.19x = 10,680,641.02
  5. Step 5: Solve for x
    x = 10,680,641.02/1,485.19
  6. Step 6: Final answer
    x = 7,191.44

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.