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Finding the Third Proportional to 1,172 and 2,984

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Solution

The third proportional to 1,172 and 2,984 is: 7,597.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172 : 2,984 = 2,984 : x
  2. Step 2: Convert to fraction form
    1,172/2,984 = 2,984/x
  3. Step 3: Cross multiply
    1,172x = 2,984 × 2,984
  4. Step 4: Simplify right side
    1,172x = 8,904,256
  5. Step 5: Solve for x
    x = 8,904,256/1,172
  6. Step 6: Final answer
    x = 7,597.49

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Why These Related Problems?

These problems maintain the same ratio (2.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.