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Finding the Fourth Proportional to 18,592.51, 27,819.05 and 11,068.55

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Solution

The fourth proportional to 18,592.51, 27,819.05 and 11,068.55 is: 16,561.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,592.51 : 27,819.05 = 11,068.55 : x
  2. Step 2: Convert to fraction form
    18,592.51/27,819.05 = 11,068.55/x
  3. Step 3: Cross multiply
    18,592.51x = 27,819.05 × 11,068.55
  4. Step 4: Simplify right side
    18,592.51x = 307,916,351.44
  5. Step 5: Solve for x
    x = 307,916,351.44/18,592.51
  6. Step 6: Final answer
    x = 16,561.32

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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.