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Finding the Fourth Proportional to 49,591.86, 68,457.72 and 33,480.99

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Solution

The fourth proportional to 49,591.86, 68,457.72 and 33,480.99 is: 46,217.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,591.86 : 68,457.72 = 33,480.99 : x
  2. Step 2: Convert to fraction form
    49,591.86/68,457.72 = 33,480.99/x
  3. Step 3: Cross multiply
    49,591.86x = 68,457.72 × 33,480.99
  4. Step 4: Simplify right side
    49,591.86x = 2,292,032,495.46
  5. Step 5: Solve for x
    x = 2,292,032,495.46/49,591.86
  6. Step 6: Final answer
    x = 46,217.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.