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Finding the Fourth Proportional to 35,640.44, 49,181.06 and 19,724.54

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Solution

The fourth proportional to 35,640.44, 49,181.06 and 19,724.54 is: 27,218.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,640.44 : 49,181.06 = 19,724.54 : x
  2. Step 2: Convert to fraction form
    35,640.44/49,181.06 = 19,724.54/x
  3. Step 3: Cross multiply
    35,640.44x = 49,181.06 × 19,724.54
  4. Step 4: Simplify right side
    35,640.44x = 970,073,785.21
  5. Step 5: Solve for x
    x = 970,073,785.21/35,640.44
  6. Step 6: Final answer
    x = 27,218.34

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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.