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Finding the Fourth Proportional to 57,269.88, 85,869.90 and 25,674.12

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Solution

The fourth proportional to 57,269.88, 85,869.90 and 25,674.12 is: 38,495.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,269.88 : 85,869.90 = 25,674.12 : x
  2. Step 2: Convert to fraction form
    57,269.88/85,869.90 = 25,674.12/x
  3. Step 3: Cross multiply
    57,269.88x = 85,869.90 × 25,674.12
  4. Step 4: Simplify right side
    57,269.88x = 2,204,634,116.99
  5. Step 5: Solve for x
    x = 2,204,634,116.99/57,269.88
  6. Step 6: Final answer
    x = 38,495.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.