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Finding the Fourth Proportional to 11,858.82, 17,793.02 and 5,280.51

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Solution

The fourth proportional to 11,858.82, 17,793.02 and 5,280.51 is: 7,922.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,858.82 : 17,793.02 = 5,280.51 : x
  2. Step 2: Convert to fraction form
    11,858.82/17,793.02 = 5,280.51/x
  3. Step 3: Cross multiply
    11,858.82x = 17,793.02 × 5,280.51
  4. Step 4: Simplify right side
    11,858.82x = 93,956,220.04
  5. Step 5: Solve for x
    x = 93,956,220.04/11,858.82
  6. Step 6: Final answer
    x = 7,922.90

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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.