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Finding the Fourth Proportional to 65,000.37, 89,699.38 and 36,320.61

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Solution

The fourth proportional to 65,000.37, 89,699.38 and 36,320.61 is: 50,121.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,000.37 : 89,699.38 = 36,320.61 : x
  2. Step 2: Convert to fraction form
    65,000.37/89,699.38 = 36,320.61/x
  3. Step 3: Cross multiply
    65,000.37x = 89,699.38 × 36,320.61
  4. Step 4: Simplify right side
    65,000.37x = 3,257,936,198.22
  5. Step 5: Solve for x
    x = 3,257,936,198.22/65,000.37
  6. Step 6: Final answer
    x = 50,121.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.