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Finding the Fourth Proportional to 31,493.44, 47,245.92 and 13,026.88

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Solution

The fourth proportional to 31,493.44, 47,245.92 and 13,026.88 is: 19,542.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,493.44 : 47,245.92 = 13,026.88 : x
  2. Step 2: Convert to fraction form
    31,493.44/47,245.92 = 13,026.88/x
  3. Step 3: Cross multiply
    31,493.44x = 47,245.92 × 13,026.88
  4. Step 4: Simplify right side
    31,493.44x = 615,466,930.33
  5. Step 5: Solve for x
    x = 615,466,930.33/31,493.44
  6. Step 6: Final answer
    x = 19,542.70

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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.