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Finding the Fourth Proportional to 57,625.86, 86,469.76 and 55,528.91

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Solution

The fourth proportional to 57,625.86, 86,469.76 and 55,528.91 is: 83,323.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,625.86 : 86,469.76 = 55,528.91 : x
  2. Step 2: Convert to fraction form
    57,625.86/86,469.76 = 55,528.91/x
  3. Step 3: Cross multiply
    57,625.86x = 86,469.76 × 55,528.91
  4. Step 4: Simplify right side
    57,625.86x = 4,801,571,482.09
  5. Step 5: Solve for x
    x = 4,801,571,482.09/57,625.86
  6. Step 6: Final answer
    x = 83,323.20

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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.