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Finding the Fourth Proportional to 62,992.81, 86,928.58 and 36,133.61

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Solution

The fourth proportional to 62,992.81, 86,928.58 and 36,133.61 is: 49,863.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,992.81 : 86,928.58 = 36,133.61 : x
  2. Step 2: Convert to fraction form
    62,992.81/86,928.58 = 36,133.61/x
  3. Step 3: Cross multiply
    62,992.81x = 86,928.58 × 36,133.61
  4. Step 4: Simplify right side
    62,992.81x = 3,141,043,089.53
  5. Step 5: Solve for x
    x = 3,141,043,089.53/62,992.81
  6. Step 6: Final answer
    x = 49,863.51

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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.