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Finding the Fourth Proportional to 18,841.96, 28,261.50 and 4,801.96

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Solution

The fourth proportional to 18,841.96, 28,261.50 and 4,801.96 is: 7,202.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,841.96 : 28,261.50 = 4,801.96 : x
  2. Step 2: Convert to fraction form
    18,841.96/28,261.50 = 4,801.96/x
  3. Step 3: Cross multiply
    18,841.96x = 28,261.50 × 4,801.96
  4. Step 4: Simplify right side
    18,841.96x = 135,710,592.54
  5. Step 5: Solve for x
    x = 135,710,592.54/18,841.96
  6. Step 6: Final answer
    x = 7,202.57

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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.