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Finding the Fourth Proportional to 33,253.72, 49,865.91 and 12,462.64

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Solution

The fourth proportional to 33,253.72, 49,865.91 and 12,462.64 is: 18,688.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,253.72 : 49,865.91 = 12,462.64 : x
  2. Step 2: Convert to fraction form
    33,253.72/49,865.91 = 12,462.64/x
  3. Step 3: Cross multiply
    33,253.72x = 49,865.91 × 12,462.64
  4. Step 4: Simplify right side
    33,253.72x = 621,460,884.60
  5. Step 5: Solve for x
    x = 621,460,884.60/33,253.72
  6. Step 6: Final answer
    x = 18,688.46

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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.