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Finding the Fourth Proportional to 57,521.76, 79,367.78 and 33,643.76

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Solution

The fourth proportional to 57,521.76, 79,367.78 and 33,643.76 is: 46,421.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,521.76 : 79,367.78 = 33,643.76 : x
  2. Step 2: Convert to fraction form
    57,521.76/79,367.78 = 33,643.76/x
  3. Step 3: Cross multiply
    57,521.76x = 79,367.78 × 33,643.76
  4. Step 4: Simplify right side
    57,521.76x = 2,670,230,542.05
  5. Step 5: Solve for x
    x = 2,670,230,542.05/57,521.76
  6. Step 6: Final answer
    x = 46,421.22

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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.