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Finding the Fourth Proportional to 64,661.87, 89,232.51 and 36,367.56

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Solution

The fourth proportional to 64,661.87, 89,232.51 and 36,367.56 is: 50,186.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,661.87 : 89,232.51 = 36,367.56 : x
  2. Step 2: Convert to fraction form
    64,661.87/89,232.51 = 36,367.56/x
  3. Step 3: Cross multiply
    64,661.87x = 89,232.51 × 36,367.56
  4. Step 4: Simplify right side
    64,661.87x = 3,245,168,444.50
  5. Step 5: Solve for x
    x = 3,245,168,444.50/64,661.87
  6. Step 6: Final answer
    x = 50,186.74

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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.