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Finding the Fourth Proportional to 33,280.58, 49,891.70 and 12,499.22

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Solution

The fourth proportional to 33,280.58, 49,891.70 and 12,499.22 is: 18,737.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,280.58 : 49,891.70 = 12,499.22 : x
  2. Step 2: Convert to fraction form
    33,280.58/49,891.70 = 12,499.22/x
  3. Step 3: Cross multiply
    33,280.58x = 49,891.70 × 12,499.22
  4. Step 4: Simplify right side
    33,280.58x = 623,607,334.47
  5. Step 5: Solve for x
    x = 623,607,334.47/33,280.58
  6. Step 6: Final answer
    x = 18,737.87

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1.5x scale

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.