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Finding the Third Proportional to 556.31 and 1,185.75

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Solution

The third proportional to 556.31 and 1,185.75 is: 2,527.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.31 : 1,185.75 = 1,185.75 : x
  2. Step 2: Convert to fraction form
    556.31/1,185.75 = 1,185.75/x
  3. Step 3: Cross multiply
    556.31x = 1,185.75 × 1,185.75
  4. Step 4: Simplify right side
    556.31x = 1,406,003.06
  5. Step 5: Solve for x
    x = 1,406,003.06/556.31
  6. Step 6: Final answer
    x = 2,527.36

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.