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Finding the Fourth Proportional to 8,793.16, 13,185.36 and 2,947.84

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Solution

The fourth proportional to 8,793.16, 13,185.36 and 2,947.84 is: 4,420.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,793.16 : 13,185.36 = 2,947.84 : x
  2. Step 2: Convert to fraction form
    8,793.16/13,185.36 = 2,947.84/x
  3. Step 3: Cross multiply
    8,793.16x = 13,185.36 × 2,947.84
  4. Step 4: Simplify right side
    8,793.16x = 38,868,331.62
  5. Step 5: Solve for x
    x = 38,868,331.62/8,793.16
  6. Step 6: Final answer
    x = 4,420.29

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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.