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Finding the Fourth Proportional to 57,168.99, 85,782.75 and 27,217.11

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Solution

The fourth proportional to 57,168.99, 85,782.75 and 27,217.11 is: 40,839.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,168.99 : 85,782.75 = 27,217.11 : x
  2. Step 2: Convert to fraction form
    57,168.99/85,782.75 = 27,217.11/x
  3. Step 3: Cross multiply
    57,168.99x = 85,782.75 × 27,217.11
  4. Step 4: Simplify right side
    57,168.99x = 2,334,758,542.85
  5. Step 5: Solve for x
    x = 2,334,758,542.85/57,168.99
  6. Step 6: Final answer
    x = 40,839.60

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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.