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Finding the Third Proportional to 3,009.75 and 4,377

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Solution

The third proportional to 3,009.75 and 4,377 is: 6,365.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,009.75 : 4,377 = 4,377 : x
  2. Step 2: Convert to fraction form
    3,009.75/4,377 = 4,377/x
  3. Step 3: Cross multiply
    3,009.75x = 4,377 × 4,377
  4. Step 4: Simplify right side
    3,009.75x = 19,158,129
  5. Step 5: Solve for x
    x = 19,158,129/3,009.75
  6. Step 6: Final answer
    x = 6,365.36

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.