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Finding the Fourth Proportional to 30,791.99, 46,188.11 and 8,605.41

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Solution

The fourth proportional to 30,791.99, 46,188.11 and 8,605.41 is: 12,908.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,791.99 : 46,188.11 = 8,605.41 : x
  2. Step 2: Convert to fraction form
    30,791.99/46,188.11 = 8,605.41/x
  3. Step 3: Cross multiply
    30,791.99x = 46,188.11 × 8,605.41
  4. Step 4: Simplify right side
    30,791.99x = 397,467,645.19
  5. Step 5: Solve for x
    x = 397,467,645.19/30,791.99
  6. Step 6: Final answer
    x = 12,908.15

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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.