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Finding the Fourth Proportional to 57,428.70, 79,245.99 and 32,277.66

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Solution

The fourth proportional to 57,428.70, 79,245.99 and 32,277.66 is: 44,540.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,428.70 : 79,245.99 = 32,277.66 : x
  2. Step 2: Convert to fraction form
    57,428.70/79,245.99 = 32,277.66/x
  3. Step 3: Cross multiply
    57,428.70x = 79,245.99 × 32,277.66
  4. Step 4: Simplify right side
    57,428.70x = 2,557,875,121.58
  5. Step 5: Solve for x
    x = 2,557,875,121.58/57,428.70
  6. Step 6: Final answer
    x = 44,540.01

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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.