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Finding the Fourth Proportional to 64,835.87, 89,470.04 and 36,158.47

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Solution

The fourth proportional to 64,835.87, 89,470.04 and 36,158.47 is: 49,896.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,835.87 : 89,470.04 = 36,158.47 : x
  2. Step 2: Convert to fraction form
    64,835.87/89,470.04 = 36,158.47/x
  3. Step 3: Cross multiply
    64,835.87x = 89,470.04 × 36,158.47
  4. Step 4: Simplify right side
    64,835.87x = 3,235,099,352.77
  5. Step 5: Solve for x
    x = 3,235,099,352.77/64,835.87
  6. Step 6: Final answer
    x = 49,896.76

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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.