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Finding the Fourth Proportional to 57,255.21, 79,012.22 and 34,899.21

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Solution

The fourth proportional to 57,255.21, 79,012.22 and 34,899.21 is: 48,160.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,255.21 : 79,012.22 = 34,899.21 : x
  2. Step 2: Convert to fraction form
    57,255.21/79,012.22 = 34,899.21/x
  3. Step 3: Cross multiply
    57,255.21x = 79,012.22 × 34,899.21
  4. Step 4: Simplify right side
    57,255.21x = 2,757,463,883.85
  5. Step 5: Solve for x
    x = 2,757,463,883.85/57,255.21
  6. Step 6: Final answer
    x = 48,160.93

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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.