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Finding the Third Proportional to 6,448.75 and 14,128

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Solution

The third proportional to 6,448.75 and 14,128 is: 30,951.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,448.75 : 14,128 = 14,128 : x
  2. Step 2: Convert to fraction form
    6,448.75/14,128 = 14,128/x
  3. Step 3: Cross multiply
    6,448.75x = 14,128 × 14,128
  4. Step 4: Simplify right side
    6,448.75x = 199,600,384
  5. Step 5: Solve for x
    x = 199,600,384/6,448.75
  6. Step 6: Final answer
    x = 30,951.79

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.