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Finding the Fourth Proportional to 57,762.80, 79,719.57 and 35,105.48

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Solution

The fourth proportional to 57,762.80, 79,719.57 and 35,105.48 is: 48,449.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,762.80 : 79,719.57 = 35,105.48 : x
  2. Step 2: Convert to fraction form
    57,762.80/79,719.57 = 35,105.48/x
  3. Step 3: Cross multiply
    57,762.80x = 79,719.57 × 35,105.48
  4. Step 4: Simplify right side
    57,762.80x = 2,798,593,770.24
  5. Step 5: Solve for x
    x = 2,798,593,770.24/57,762.80
  6. Step 6: Final answer
    x = 48,449.76

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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.