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Finding the Fourth Proportional to 31,944.32, 44,081.32 and 18,329.48

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Solution

The fourth proportional to 31,944.32, 44,081.32 and 18,329.48 is: 25,293.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,944.32 : 44,081.32 = 18,329.48 : x
  2. Step 2: Convert to fraction form
    31,944.32/44,081.32 = 18,329.48/x
  3. Step 3: Cross multiply
    31,944.32x = 44,081.32 × 18,329.48
  4. Step 4: Simplify right side
    31,944.32x = 807,987,361.26
  5. Step 5: Solve for x
    x = 807,987,361.26/31,944.32
  6. Step 6: Final answer
    x = 25,293.62

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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.