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Finding the Fourth Proportional to 33,131.80, 45,738.80 and 25,561.14

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Solution

The fourth proportional to 33,131.80, 45,738.80 and 25,561.14 is: 35,287.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,131.80 : 45,738.80 = 25,561.14 : x
  2. Step 2: Convert to fraction form
    33,131.80/45,738.80 = 25,561.14/x
  3. Step 3: Cross multiply
    33,131.80x = 45,738.80 × 25,561.14
  4. Step 4: Simplify right side
    33,131.80x = 1,169,135,870.23
  5. Step 5: Solve for x
    x = 1,169,135,870.23/33,131.80
  6. Step 6: Final answer
    x = 35,287.42

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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.