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Finding the Fourth Proportional to 33,158.81, 45,759.16 and 18,254.81

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Solution

The fourth proportional to 33,158.81, 45,759.16 and 18,254.81 is: 25,191.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,158.81 : 45,759.16 = 18,254.81 : x
  2. Step 2: Convert to fraction form
    33,158.81/45,759.16 = 18,254.81/x
  3. Step 3: Cross multiply
    33,158.81x = 45,759.16 × 18,254.81
  4. Step 4: Simplify right side
    33,158.81x = 835,324,908.78
  5. Step 5: Solve for x
    x = 835,324,908.78/33,158.81
  6. Step 6: Final answer
    x = 25,191.64

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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.