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Finding the Fourth Proportional to 55,986.75, 83,981.75 and 14,433.75

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Solution

The fourth proportional to 55,986.75, 83,981.75 and 14,433.75 is: 21,651.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,986.75 : 83,981.75 = 14,433.75 : x
  2. Step 2: Convert to fraction form
    55,986.75/83,981.75 = 14,433.75/x
  3. Step 3: Cross multiply
    55,986.75x = 83,981.75 × 14,433.75
  4. Step 4: Simplify right side
    55,986.75x = 1,212,171,511.89
  5. Step 5: Solve for x
    x = 1,212,171,511.89/55,986.75
  6. Step 6: Final answer
    x = 21,651.04

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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.