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Finding the Fourth Proportional to 22,561.64, 33,994.76 and 18,698.78

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Solution

The fourth proportional to 22,561.64, 33,994.76 and 18,698.78 is: 28,174.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,561.64 : 33,994.76 = 18,698.78 : x
  2. Step 2: Convert to fraction form
    22,561.64/33,994.76 = 18,698.78/x
  3. Step 3: Cross multiply
    22,561.64x = 33,994.76 × 18,698.78
  4. Step 4: Simplify right side
    22,561.64x = 635,660,538.39
  5. Step 5: Solve for x
    x = 635,660,538.39/22,561.64
  6. Step 6: Final answer
    x = 28,174.39

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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.