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Finding the Fourth Proportional to 64,750.56, 89,355.66 and 36,456.36

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Solution

The fourth proportional to 64,750.56, 89,355.66 and 36,456.36 is: 50,309.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,750.56 : 89,355.66 = 36,456.36 : x
  2. Step 2: Convert to fraction form
    64,750.56/89,355.66 = 36,456.36/x
  3. Step 3: Cross multiply
    64,750.56x = 89,355.66 × 36,456.36
  4. Step 4: Simplify right side
    64,750.56x = 3,257,582,109.00
  5. Step 5: Solve for x
    x = 3,257,582,109.00/64,750.56
  6. Step 6: Final answer
    x = 50,309.71

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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.