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Finding the Fourth Proportional to 8,627.84, 12,947.44 and 4,734.96

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Solution

The fourth proportional to 8,627.84, 12,947.44 and 4,734.96 is: 7,105.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627.84 : 12,947.44 = 4,734.96 : x
  2. Step 2: Convert to fraction form
    8,627.84/12,947.44 = 4,734.96/x
  3. Step 3: Cross multiply
    8,627.84x = 12,947.44 × 4,734.96
  4. Step 4: Simplify right side
    8,627.84x = 61,305,610.50
  5. Step 5: Solve for x
    x = 61,305,610.50/8,627.84
  6. Step 6: Final answer
    x = 7,105.56

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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.