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Finding the Fourth Proportional to 57,858.42, 79,821.79 and 36,335.50

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Solution

The fourth proportional to 57,858.42, 79,821.79 and 36,335.50 is: 50,128.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,858.42 : 79,821.79 = 36,335.50 : x
  2. Step 2: Convert to fraction form
    57,858.42/79,821.79 = 36,335.50/x
  3. Step 3: Cross multiply
    57,858.42x = 79,821.79 × 36,335.50
  4. Step 4: Simplify right side
    57,858.42x = 2,900,364,650.55
  5. Step 5: Solve for x
    x = 2,900,364,650.55/57,858.42
  6. Step 6: Final answer
    x = 50,128.65

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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.