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Finding the Fourth Proportional to 57,661.74, 79,571.26 and 33,787.90

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Solution

The fourth proportional to 57,661.74, 79,571.26 and 33,787.90 is: 46,626.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,661.74 : 79,571.26 = 33,787.90 : x
  2. Step 2: Convert to fraction form
    57,661.74/79,571.26 = 33,787.90/x
  3. Step 3: Cross multiply
    57,661.74x = 79,571.26 × 33,787.90
  4. Step 4: Simplify right side
    57,661.74x = 2,688,545,917.45
  5. Step 5: Solve for x
    x = 2,688,545,917.45/57,661.74
  6. Step 6: Final answer
    x = 46,626.17

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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.