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Finding the Fourth Proportional to 57,468.72, 79,301.70 and 31,974.24

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Solution

The fourth proportional to 57,468.72, 79,301.70 and 31,974.24 is: 44,121.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,468.72 : 79,301.70 = 31,974.24 : x
  2. Step 2: Convert to fraction form
    57,468.72/79,301.70 = 31,974.24/x
  3. Step 3: Cross multiply
    57,468.72x = 79,301.70 × 31,974.24
  4. Step 4: Simplify right side
    57,468.72x = 2,535,611,588.21
  5. Step 5: Solve for x
    x = 2,535,611,588.21/57,468.72
  6. Step 6: Final answer
    x = 44,121.59

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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.