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Finding the Fourth Proportional to 36,653.76, 54,986.02 and 13,274.72

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Solution

The fourth proportional to 36,653.76, 54,986.02 and 13,274.72 is: 19,914.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,653.76 : 54,986.02 = 13,274.72 : x
  2. Step 2: Convert to fraction form
    36,653.76/54,986.02 = 13,274.72/x
  3. Step 3: Cross multiply
    36,653.76x = 54,986.02 × 13,274.72
  4. Step 4: Simplify right side
    36,653.76x = 729,924,019.41
  5. Step 5: Solve for x
    x = 729,924,019.41/36,653.76
  6. Step 6: Final answer
    x = 19,914.03

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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.