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Finding the Fourth Proportional to 55,321.94, 82,991.07 and 17,869.52

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Solution

The fourth proportional to 55,321.94, 82,991.07 and 17,869.52 is: 26,806.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,321.94 : 82,991.07 = 17,869.52 : x
  2. Step 2: Convert to fraction form
    55,321.94/82,991.07 = 17,869.52/x
  3. Step 3: Cross multiply
    55,321.94x = 82,991.07 × 17,869.52
  4. Step 4: Simplify right side
    55,321.94x = 1,483,010,585.19
  5. Step 5: Solve for x
    x = 1,483,010,585.19/55,321.94
  6. Step 6: Final answer
    x = 26,806.92

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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.