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Finding the Fourth Proportional to 49,796.60, 74,693.10 and 20,213.60

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Solution

The fourth proportional to 49,796.60, 74,693.10 and 20,213.60 is: 30,319.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,796.60 : 74,693.10 = 20,213.60 : x
  2. Step 2: Convert to fraction form
    49,796.60/74,693.10 = 20,213.60/x
  3. Step 3: Cross multiply
    49,796.60x = 74,693.10 × 20,213.60
  4. Step 4: Simplify right side
    49,796.60x = 1,509,816,446.16
  5. Step 5: Solve for x
    x = 1,509,816,446.16/49,796.60
  6. Step 6: Final answer
    x = 30,319.67

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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.