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Finding the Fourth Proportional to 18,543.77, 27,815.27 and 4,503.87

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Solution

The fourth proportional to 18,543.77, 27,815.27 and 4,503.87 is: 6,755.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,543.77 : 27,815.27 = 4,503.87 : x
  2. Step 2: Convert to fraction form
    18,543.77/27,815.27 = 4,503.87/x
  3. Step 3: Cross multiply
    18,543.77x = 27,815.27 × 4,503.87
  4. Step 4: Simplify right side
    18,543.77x = 125,276,337.58
  5. Step 5: Solve for x
    x = 125,276,337.58/18,543.77
  6. Step 6: Final answer
    x = 6,755.71

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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.