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Finding the Fourth Proportional to 67,045.99, 100,581.96 and 25,489.75

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Solution

The fourth proportional to 67,045.99, 100,581.96 and 25,489.75 is: 38,239.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,045.99 : 100,581.96 = 25,489.75 : x
  2. Step 2: Convert to fraction form
    67,045.99/100,581.96 = 25,489.75/x
  3. Step 3: Cross multiply
    67,045.99x = 100,581.96 × 25,489.75
  4. Step 4: Simplify right side
    67,045.99x = 2,563,809,014.91
  5. Step 5: Solve for x
    x = 2,563,809,014.91/67,045.99
  6. Step 6: Final answer
    x = 38,239.56

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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.