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Finding the Fourth Proportional to 33,051.50, 45,611.43 and 18,147.50

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Solution

The fourth proportional to 33,051.50, 45,611.43 and 18,147.50 is: 25,043.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,051.50 : 45,611.43 = 18,147.50 : x
  2. Step 2: Convert to fraction form
    33,051.50/45,611.43 = 18,147.50/x
  3. Step 3: Cross multiply
    33,051.50x = 45,611.43 × 18,147.50
  4. Step 4: Simplify right side
    33,051.50x = 827,733,425.93
  5. Step 5: Solve for x
    x = 827,733,425.93/33,051.50
  6. Step 6: Final answer
    x = 25,043.75

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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.