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Finding the Fourth Proportional to 31,247.99, 46,879.16 and 9,063.15

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Solution

The fourth proportional to 31,247.99, 46,879.16 and 9,063.15 is: 13,596.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,247.99 : 46,879.16 = 9,063.15 : x
  2. Step 2: Convert to fraction form
    31,247.99/46,879.16 = 9,063.15/x
  3. Step 3: Cross multiply
    31,247.99x = 46,879.16 × 9,063.15
  4. Step 4: Simplify right side
    31,247.99x = 424,872,858.95
  5. Step 5: Solve for x
    x = 424,872,858.95/31,247.99
  6. Step 6: Final answer
    x = 13,596.81

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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.