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Finding the Fourth Proportional to 22,422.88, 33,751.24 and 19,040.32

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Solution

The fourth proportional to 22,422.88, 33,751.24 and 19,040.32 is: 28,659.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,422.88 : 33,751.24 = 19,040.32 : x
  2. Step 2: Convert to fraction form
    22,422.88/33,751.24 = 19,040.32/x
  3. Step 3: Cross multiply
    22,422.88x = 33,751.24 × 19,040.32
  4. Step 4: Simplify right side
    22,422.88x = 642,634,410.00
  5. Step 5: Solve for x
    x = 642,634,410.00/22,422.88
  6. Step 6: Final answer
    x = 28,659.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.