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Finding the Fourth Proportional to 57,824.72, 79,754.08 and 49,772.07

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Solution

The fourth proportional to 57,824.72, 79,754.08 and 49,772.07 is: 68,647.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,824.72 : 79,754.08 = 49,772.07 : x
  2. Step 2: Convert to fraction form
    57,824.72/79,754.08 = 49,772.07/x
  3. Step 3: Cross multiply
    57,824.72x = 79,754.08 × 49,772.07
  4. Step 4: Simplify right side
    57,824.72x = 3,969,525,403.69
  5. Step 5: Solve for x
    x = 3,969,525,403.69/57,824.72
  6. Step 6: Final answer
    x = 68,647.56

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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.