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Finding the Fourth Proportional to 33,115.60, 49,673.40 and 8,491.60

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Solution

The fourth proportional to 33,115.60, 49,673.40 and 8,491.60 is: 12,737.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,115.60 : 49,673.40 = 8,491.60 : x
  2. Step 2: Convert to fraction form
    33,115.60/49,673.40 = 8,491.60/x
  3. Step 3: Cross multiply
    33,115.60x = 49,673.40 × 8,491.60
  4. Step 4: Simplify right side
    33,115.60x = 421,806,643.44
  5. Step 5: Solve for x
    x = 421,806,643.44/33,115.60
  6. Step 6: Final answer
    x = 12,737.40

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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.