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Finding the Fourth Proportional to 32,949.92, 49,424.70 and 7,989.95

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Solution

The fourth proportional to 32,949.92, 49,424.70 and 7,989.95 is: 11,984.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,949.92 : 49,424.70 = 7,989.95 : x
  2. Step 2: Convert to fraction form
    32,949.92/49,424.70 = 7,989.95/x
  3. Step 3: Cross multiply
    32,949.92x = 49,424.70 × 7,989.95
  4. Step 4: Simplify right side
    32,949.92x = 394,900,881.77
  5. Step 5: Solve for x
    x = 394,900,881.77/32,949.92
  6. Step 6: Final answer
    x = 11,984.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.