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Finding the Fourth Proportional to 27,888.44, 38,481.90 and 15,949.04

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Solution

The fourth proportional to 27,888.44, 38,481.90 and 15,949.04 is: 22,007.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,888.44 : 38,481.90 = 15,949.04 : x
  2. Step 2: Convert to fraction form
    27,888.44/38,481.90 = 15,949.04/x
  3. Step 3: Cross multiply
    27,888.44x = 38,481.90 × 15,949.04
  4. Step 4: Simplify right side
    27,888.44x = 613,749,362.38
  5. Step 5: Solve for x
    x = 613,749,362.38/27,888.44
  6. Step 6: Final answer
    x = 22,007.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.