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Finding the Fourth Proportional to 31,079.84, 46,578.24 and 11,339.84

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Solution

The fourth proportional to 31,079.84, 46,578.24 and 11,339.84 is: 16,994.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,079.84 : 46,578.24 = 11,339.84 : x
  2. Step 2: Convert to fraction form
    31,079.84/46,578.24 = 11,339.84/x
  3. Step 3: Cross multiply
    31,079.84x = 46,578.24 × 11,339.84
  4. Step 4: Simplify right side
    31,079.84x = 528,189,789.08
  5. Step 5: Solve for x
    x = 528,189,789.08/31,079.84
  6. Step 6: Final answer
    x = 16,994.61

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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.