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Finding the Fourth Proportional to 54,441.90, 81,531.63 and 36,858.42

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Solution

The fourth proportional to 54,441.90, 81,531.63 and 36,858.42 is: 55,198.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,441.90 : 81,531.63 = 36,858.42 : x
  2. Step 2: Convert to fraction form
    54,441.90/81,531.63 = 36,858.42/x
  3. Step 3: Cross multiply
    54,441.90x = 81,531.63 × 36,858.42
  4. Step 4: Simplify right side
    54,441.90x = 3,005,127,061.82
  5. Step 5: Solve for x
    x = 3,005,127,061.82/54,441.90
  6. Step 6: Final answer
    x = 55,198.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.