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Finding the Fourth Proportional to 18,543.87, 27,815.55 and 4,504

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Solution

The fourth proportional to 18,543.87, 27,815.55 and 4,504 is: 6,755.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,543.87 : 27,815.55 = 4,504 : x
  2. Step 2: Convert to fraction form
    18,543.87/27,815.55 = 4,504/x
  3. Step 3: Cross multiply
    18,543.87x = 27,815.55 × 4,504
  4. Step 4: Simplify right side
    18,543.87x = 125,281,237.20
  5. Step 5: Solve for x
    x = 125,281,237.20/18,543.87
  6. Step 6: Final answer
    x = 6,755.94

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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.