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Finding the Fourth Proportional to 59,379.84, 89,079.44 and 28,204.56

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Solution

The fourth proportional to 59,379.84, 89,079.44 and 28,204.56 is: 42,311.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,379.84 : 89,079.44 = 28,204.56 : x
  2. Step 2: Convert to fraction form
    59,379.84/89,079.44 = 28,204.56/x
  3. Step 3: Cross multiply
    59,379.84x = 89,079.44 × 28,204.56
  4. Step 4: Simplify right side
    59,379.84x = 2,512,446,410.25
  5. Step 5: Solve for x
    x = 2,512,446,410.25/59,379.84
  6. Step 6: Final answer
    x = 42,311.44

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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.