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Finding the Third Proportional to 38,928.75 and 85,005.75

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Solution

The third proportional to 38,928.75 and 85,005.75 is: 185,620.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,928.75 : 85,005.75 = 85,005.75 : x
  2. Step 2: Convert to fraction form
    38,928.75/85,005.75 = 85,005.75/x
  3. Step 3: Cross multiply
    38,928.75x = 85,005.75 × 85,005.75
  4. Step 4: Simplify right side
    38,928.75x = 7,225,977,533.06
  5. Step 5: Solve for x
    x = 7,225,977,533.06/38,928.75
  6. Step 6: Final answer
    x = 185,620.59

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.