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Finding the Fourth Proportional to 57,600.42, 79,488.45 and 32,449.74

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Solution

The fourth proportional to 57,600.42, 79,488.45 and 32,449.74 is: 44,780.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,600.42 : 79,488.45 = 32,449.74 : x
  2. Step 2: Convert to fraction form
    57,600.42/79,488.45 = 32,449.74/x
  3. Step 3: Cross multiply
    57,600.42x = 79,488.45 × 32,449.74
  4. Step 4: Simplify right side
    57,600.42x = 2,579,379,535.50
  5. Step 5: Solve for x
    x = 2,579,379,535.50/57,600.42
  6. Step 6: Final answer
    x = 44,780.57

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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.