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Finding the Fourth Proportional to 36,068.40, 54,059.40 and 18,529.20

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Solution

The fourth proportional to 36,068.40, 54,059.40 and 18,529.20 is: 27,771.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,068.40 : 54,059.40 = 18,529.20 : x
  2. Step 2: Convert to fraction form
    36,068.40/54,059.40 = 18,529.20/x
  3. Step 3: Cross multiply
    36,068.40x = 54,059.40 × 18,529.20
  4. Step 4: Simplify right side
    36,068.40x = 1,001,677,434.48
  5. Step 5: Solve for x
    x = 1,001,677,434.48/36,068.40
  6. Step 6: Final answer
    x = 27,771.61

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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.