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Finding the Fourth Proportional to 55,222.61, 82,833.93 and 13,669.61

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Solution

The fourth proportional to 55,222.61, 82,833.93 and 13,669.61 is: 20,504.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,222.61 : 82,833.93 = 13,669.61 : x
  2. Step 2: Convert to fraction form
    55,222.61/82,833.93 = 13,669.61/x
  3. Step 3: Cross multiply
    55,222.61x = 82,833.93 × 13,669.61
  4. Step 4: Simplify right side
    55,222.61x = 1,132,307,103.70
  5. Step 5: Solve for x
    x = 1,132,307,103.70/55,222.61
  6. Step 6: Final answer
    x = 20,504.41

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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.