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Finding the Fourth Proportional to 64,747.56, 89,351.52 and 36,453.36

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Solution

The fourth proportional to 64,747.56, 89,351.52 and 36,453.36 is: 50,305.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,747.56 : 89,351.52 = 36,453.36 : x
  2. Step 2: Convert to fraction form
    64,747.56/89,351.52 = 36,453.36/x
  3. Step 3: Cross multiply
    64,747.56x = 89,351.52 × 36,453.36
  4. Step 4: Simplify right side
    64,747.56x = 3,257,163,125.11
  5. Step 5: Solve for x
    x = 3,257,163,125.11/64,747.56
  6. Step 6: Final answer
    x = 50,305.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.