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Finding the Fourth Proportional to 60,245.82, 90,399.72 and 28,691.67

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Solution

The fourth proportional to 60,245.82, 90,399.72 and 28,691.67 is: 43,052.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,245.82 : 90,399.72 = 28,691.67 : x
  2. Step 2: Convert to fraction form
    60,245.82/90,399.72 = 28,691.67/x
  3. Step 3: Cross multiply
    60,245.82x = 90,399.72 × 28,691.67
  4. Step 4: Simplify right side
    60,245.82x = 2,593,718,934.33
  5. Step 5: Solve for x
    x = 2,593,718,934.33/60,245.82
  6. Step 6: Final answer
    x = 43,052.26

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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.