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Finding the Fourth Proportional to 57,750.68, 79,695.33 and 33,872.83

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Solution

The fourth proportional to 57,750.68, 79,695.33 and 33,872.83 is: 46,744.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,750.68 : 79,695.33 = 33,872.83 : x
  2. Step 2: Convert to fraction form
    57,750.68/79,695.33 = 33,872.83/x
  3. Step 3: Cross multiply
    57,750.68x = 79,695.33 × 33,872.83
  4. Step 4: Simplify right side
    57,750.68x = 2,699,506,364.88
  5. Step 5: Solve for x
    x = 2,699,506,364.88/57,750.68
  6. Step 6: Final answer
    x = 46,744.15

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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.