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Finding the Fourth Proportional to 60,019.82, 90,086.24 and 30,458.87

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Solution

The fourth proportional to 60,019.82, 90,086.24 and 30,458.87 is: 45,716.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,019.82 : 90,086.24 = 30,458.87 : x
  2. Step 2: Convert to fraction form
    60,019.82/90,086.24 = 30,458.87/x
  3. Step 3: Cross multiply
    60,019.82x = 90,086.24 × 30,458.87
  4. Step 4: Simplify right side
    60,019.82x = 2,743,925,072.95
  5. Step 5: Solve for x
    x = 2,743,925,072.95/60,019.82
  6. Step 6: Final answer
    x = 45,716.98

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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.