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Finding the Fourth Proportional to 7,889.59, 11,850.15 and 4,933.29

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Solution

The fourth proportional to 7,889.59, 11,850.15 and 4,933.29 is: 7,409.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.59 : 11,850.15 = 4,933.29 : x
  2. Step 2: Convert to fraction form
    7,889.59/11,850.15 = 4,933.29/x
  3. Step 3: Cross multiply
    7,889.59x = 11,850.15 × 4,933.29
  4. Step 4: Simplify right side
    7,889.59x = 58,460,245.02
  5. Step 5: Solve for x
    x = 58,460,245.02/7,889.59
  6. Step 6: Final answer
    x = 7,409.80

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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.