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Finding the Fourth Proportional to 36,338.60, 54,509.70 and 18,842.60

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Solution

The fourth proportional to 36,338.60, 54,509.70 and 18,842.60 is: 28,264.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,338.60 : 54,509.70 = 18,842.60 : x
  2. Step 2: Convert to fraction form
    36,338.60/54,509.70 = 18,842.60/x
  3. Step 3: Cross multiply
    36,338.60x = 54,509.70 × 18,842.60
  4. Step 4: Simplify right side
    36,338.60x = 1,027,104,473.22
  5. Step 5: Solve for x
    x = 1,027,104,473.22/36,338.60
  6. Step 6: Final answer
    x = 28,264.83

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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.