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Finding the Fourth Proportional to 57,334.80, 85,929.30 and 27,688.80

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Solution

The fourth proportional to 57,334.80, 85,929.30 and 27,688.80 is: 41,497.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,334.80 : 85,929.30 = 27,688.80 : x
  2. Step 2: Convert to fraction form
    57,334.80/85,929.30 = 27,688.80/x
  3. Step 3: Cross multiply
    57,334.80x = 85,929.30 × 27,688.80
  4. Step 4: Simplify right side
    57,334.80x = 2,379,279,201.84
  5. Step 5: Solve for x
    x = 2,379,279,201.84/57,334.80
  6. Step 6: Final answer
    x = 41,497.99

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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.