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Finding the Third Proportional to 1,474.69 and 3,208.13

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Solution

The third proportional to 1,474.69 and 3,208.13 is: 6,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.69 : 3,208.13 = 3,208.13 : x
  2. Step 2: Convert to fraction form
    1,474.69/3,208.13 = 3,208.13/x
  3. Step 3: Cross multiply
    1,474.69x = 3,208.13 × 3,208.13
  4. Step 4: Simplify right side
    1,474.69x = 10,292,066.02
  5. Step 5: Solve for x
    x = 10,292,066.02/1,474.69
  6. Step 6: Final answer
    x = 6,979.15

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.