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Finding the Third Proportional to 1,186.76 and 1,860.94

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Solution

The third proportional to 1,186.76 and 1,860.94 is: 2,918.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186.76 : 1,860.94 = 1,860.94 : x
  2. Step 2: Convert to fraction form
    1,186.76/1,860.94 = 1,860.94/x
  3. Step 3: Cross multiply
    1,186.76x = 1,860.94 × 1,860.94
  4. Step 4: Simplify right side
    1,186.76x = 3,463,110.19
  5. Step 5: Solve for x
    x = 3,463,110.19/1,186.76
  6. Step 6: Final answer
    x = 2,918.12

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.