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Finding the Fourth Proportional to 18,733.39, 28,097.25 and 7,043.88

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Solution

The fourth proportional to 18,733.39, 28,097.25 and 7,043.88 is: 10,564.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,733.39 : 28,097.25 = 7,043.88 : x
  2. Step 2: Convert to fraction form
    18,733.39/28,097.25 = 7,043.88/x
  3. Step 3: Cross multiply
    18,733.39x = 28,097.25 × 7,043.88
  4. Step 4: Simplify right side
    18,733.39x = 197,913,657.33
  5. Step 5: Solve for x
    x = 197,913,657.33/18,733.39
  6. Step 6: Final answer
    x = 10,564.75

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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.