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Finding the Fourth Proportional to 59,890.68, 89,855.46 and 28,728.36

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Solution

The fourth proportional to 59,890.68, 89,855.46 and 28,728.36 is: 43,101.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,890.68 : 89,855.46 = 28,728.36 : x
  2. Step 2: Convert to fraction form
    59,890.68/89,855.46 = 28,728.36/x
  3. Step 3: Cross multiply
    59,890.68x = 89,855.46 × 28,728.36
  4. Step 4: Simplify right side
    59,890.68x = 2,581,400,002.85
  5. Step 5: Solve for x
    x = 2,581,400,002.85/59,890.68
  6. Step 6: Final answer
    x = 43,101.86

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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.