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Finding the Fourth Proportional to 30,944.36, 46,418.99 and 8,757.87

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Solution

The fourth proportional to 30,944.36, 46,418.99 and 8,757.87 is: 13,137.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,944.36 : 46,418.99 = 8,757.87 : x
  2. Step 2: Convert to fraction form
    30,944.36/46,418.99 = 8,757.87/x
  3. Step 3: Cross multiply
    30,944.36x = 46,418.99 × 8,757.87
  4. Step 4: Simplify right side
    30,944.36x = 406,531,436.16
  5. Step 5: Solve for x
    x = 406,531,436.16/30,944.36
  6. Step 6: Final answer
    x = 13,137.50

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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.