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Finding the Fourth Proportional to 57,240.48, 85,885.44 and 30,963.72

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Solution

The fourth proportional to 57,240.48, 85,885.44 and 30,963.72 is: 46,458.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,240.48 : 85,885.44 = 30,963.72 : x
  2. Step 2: Convert to fraction form
    57,240.48/85,885.44 = 30,963.72/x
  3. Step 3: Cross multiply
    57,240.48x = 85,885.44 × 30,963.72
  4. Step 4: Simplify right side
    57,240.48x = 2,659,332,716.24
  5. Step 5: Solve for x
    x = 2,659,332,716.24/57,240.48
  6. Step 6: Final answer
    x = 46,458.95

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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.