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Finding the Fourth Proportional to 64,950.50, 89,631.75 and 36,655.58

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Solution

The fourth proportional to 64,950.50, 89,631.75 and 36,655.58 is: 50,584.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,950.50 : 89,631.75 = 36,655.58 : x
  2. Step 2: Convert to fraction form
    64,950.50/89,631.75 = 36,655.58/x
  3. Step 3: Cross multiply
    64,950.50x = 89,631.75 × 36,655.58
  4. Step 4: Simplify right side
    64,950.50x = 3,285,503,782.67
  5. Step 5: Solve for x
    x = 3,285,503,782.67/64,950.50
  6. Step 6: Final answer
    x = 50,584.73

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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.