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Finding the Fourth Proportional to 54,761.56, 75,570.90 and 29,611

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Solution

The fourth proportional to 54,761.56, 75,570.90 and 29,611 is: 40,863.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,761.56 : 75,570.90 = 29,611 : x
  2. Step 2: Convert to fraction form
    54,761.56/75,570.90 = 29,611/x
  3. Step 3: Cross multiply
    54,761.56x = 75,570.90 × 29,611
  4. Step 4: Simplify right side
    54,761.56x = 2,237,729,919.90
  5. Step 5: Solve for x
    x = 2,237,729,919.90/54,761.56
  6. Step 6: Final answer
    x = 40,863.15

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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.