Home / 33,122.64-45,709.26-18,218.64

Finding the Fourth Proportional to 33,122.64, 45,709.26 and 18,218.64

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Solution

The fourth proportional to 33,122.64, 45,709.26 and 18,218.64 is: 25,141.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,122.64 : 45,709.26 = 18,218.64 : x
  2. Step 2: Convert to fraction form
    33,122.64/45,709.26 = 18,218.64/x
  3. Step 3: Cross multiply
    33,122.64x = 45,709.26 × 18,218.64
  4. Step 4: Simplify right side
    33,122.64x = 832,760,552.61
  5. Step 5: Solve for x
    x = 832,760,552.61/33,122.64
  6. Step 6: Final answer
    x = 25,141.73

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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.