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Finding the Fourth Proportional to 33,172.32, 45,778.32 and 18,268.32

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Solution

The fourth proportional to 33,172.32, 45,778.32 and 18,268.32 is: 25,210.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,172.32 : 45,778.32 = 18,268.32 : x
  2. Step 2: Convert to fraction form
    33,172.32/45,778.32 = 18,268.32/x
  3. Step 3: Cross multiply
    33,172.32x = 45,778.32 × 18,268.32
  4. Step 4: Simplify right side
    33,172.32x = 836,292,998.82
  5. Step 5: Solve for x
    x = 836,292,998.82/33,172.32
  6. Step 6: Final answer
    x = 25,210.57

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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.