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Finding the Fourth Proportional to 55,894.89, 83,824.55 and 18,447.99

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Solution

The fourth proportional to 55,894.89, 83,824.55 and 18,447.99 is: 27,666.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,894.89 : 83,824.55 = 18,447.99 : x
  2. Step 2: Convert to fraction form
    55,894.89/83,824.55 = 18,447.99/x
  3. Step 3: Cross multiply
    55,894.89x = 83,824.55 × 18,447.99
  4. Step 4: Simplify right side
    55,894.89x = 1,546,394,367.91
  5. Step 5: Solve for x
    x = 1,546,394,367.91/55,894.89
  6. Step 6: Final answer
    x = 27,666.11

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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.