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Finding the Fourth Proportional to 54,361.65, 75,019.70 and 30,163.05

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Solution

The fourth proportional to 54,361.65, 75,019.70 and 30,163.05 is: 41,625.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,361.65 : 75,019.70 = 30,163.05 : x
  2. Step 2: Convert to fraction form
    54,361.65/75,019.70 = 30,163.05/x
  3. Step 3: Cross multiply
    54,361.65x = 75,019.70 × 30,163.05
  4. Step 4: Simplify right side
    54,361.65x = 2,262,822,811.27
  5. Step 5: Solve for x
    x = 2,262,822,811.27/54,361.65
  6. Step 6: Final answer
    x = 41,625.35

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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.