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Finding the Fourth Proportional to 33,219.60, 49,829.40 and 31,907.40

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Solution

The fourth proportional to 33,219.60, 49,829.40 and 31,907.40 is: 47,861.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,219.60 : 49,829.40 = 31,907.40 : x
  2. Step 2: Convert to fraction form
    33,219.60/49,829.40 = 31,907.40/x
  3. Step 3: Cross multiply
    33,219.60x = 49,829.40 × 31,907.40
  4. Step 4: Simplify right side
    33,219.60x = 1,589,926,597.56
  5. Step 5: Solve for x
    x = 1,589,926,597.56/33,219.60
  6. Step 6: Final answer
    x = 47,861.10

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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.