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Finding the Fourth Proportional to 33,106.88, 45,687.50 and 18,202.88

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Solution

The fourth proportional to 33,106.88, 45,687.50 and 18,202.88 is: 25,119.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,106.88 : 45,687.50 = 18,202.88 : x
  2. Step 2: Convert to fraction form
    33,106.88/45,687.50 = 18,202.88/x
  3. Step 3: Cross multiply
    33,106.88x = 45,687.50 × 18,202.88
  4. Step 4: Simplify right side
    33,106.88x = 831,643,760.55
  5. Step 5: Solve for x
    x = 831,643,760.55/33,106.88
  6. Step 6: Final answer
    x = 25,119.97

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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.