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Finding the Fourth Proportional to 36,580.64, 54,841.79 and 14,389.88

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Solution

The fourth proportional to 36,580.64, 54,841.79 and 14,389.88 is: 21,573.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,580.64 : 54,841.79 = 14,389.88 : x
  2. Step 2: Convert to fraction form
    36,580.64/54,841.79 = 14,389.88/x
  3. Step 3: Cross multiply
    36,580.64x = 54,841.79 × 14,389.88
  4. Step 4: Simplify right side
    36,580.64x = 789,166,538.85
  5. Step 5: Solve for x
    x = 789,166,538.85/36,580.64
  6. Step 6: Final answer
    x = 21,573.34

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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.