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Finding the Fourth Proportional to 49,588.88, 68,435.88 and 28,370.96

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Solution

The fourth proportional to 49,588.88, 68,435.88 and 28,370.96 is: 39,153.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,588.88 : 68,435.88 = 28,370.96 : x
  2. Step 2: Convert to fraction form
    49,588.88/68,435.88 = 28,370.96/x
  3. Step 3: Cross multiply
    49,588.88x = 68,435.88 × 28,370.96
  4. Step 4: Simplify right side
    49,588.88x = 1,941,591,614.04
  5. Step 5: Solve for x
    x = 1,941,591,614.04/49,588.88
  6. Step 6: Final answer
    x = 39,153.77

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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.