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Finding the Fourth Proportional to 85,001.67, 127,517.09 and 25,843.32

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Solution

The fourth proportional to 85,001.67, 127,517.09 and 25,843.32 is: 38,769.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,001.67 : 127,517.09 = 25,843.32 : x
  2. Step 2: Convert to fraction form
    85,001.67/127,517.09 = 25,843.32/x
  3. Step 3: Cross multiply
    85,001.67x = 127,517.09 × 25,843.32
  4. Step 4: Simplify right side
    85,001.67x = 3,295,464,833.12
  5. Step 5: Solve for x
    x = 3,295,464,833.12/85,001.67
  6. Step 6: Final answer
    x = 38,769.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.