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Finding the Third Proportional to 557 and 1,186

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Solution

The third proportional to 557 and 1,186 is: 2,525.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    557 : 1,186 = 1,186 : x
  2. Step 2: Convert to fraction form
    557/1,186 = 1,186/x
  3. Step 3: Cross multiply
    557x = 1,186 × 1,186
  4. Step 4: Simplify right side
    557x = 1,406,596
  5. Step 5: Solve for x
    x = 1,406,596/557
  6. Step 6: Final answer
    x = 2,525.31

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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.