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Finding the Fourth Proportional to 59,751.86, 89,640.72 and 18,197.78

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Solution

The fourth proportional to 59,751.86, 89,640.72 and 18,197.78 is: 27,300.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,751.86 : 89,640.72 = 18,197.78 : x
  2. Step 2: Convert to fraction form
    59,751.86/89,640.72 = 18,197.78/x
  3. Step 3: Cross multiply
    59,751.86x = 89,640.72 × 18,197.78
  4. Step 4: Simplify right side
    59,751.86x = 1,631,262,101.60
  5. Step 5: Solve for x
    x = 1,631,262,101.60/59,751.86
  6. Step 6: Final answer
    x = 27,300.61

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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.