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Finding the Fourth Proportional to 18,695.75, 28,045.52 and 7,600.73

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Solution

The fourth proportional to 18,695.75, 28,045.52 and 7,600.73 is: 11,401.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,695.75 : 28,045.52 = 7,600.73 : x
  2. Step 2: Convert to fraction form
    18,695.75/28,045.52 = 7,600.73/x
  3. Step 3: Cross multiply
    18,695.75x = 28,045.52 × 7,600.73
  4. Step 4: Simplify right side
    18,695.75x = 213,166,387.23
  5. Step 5: Solve for x
    x = 213,166,387.23/18,695.75
  6. Step 6: Final answer
    x = 11,401.86

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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.