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Finding the Fourth Proportional to 8,856.80, 13,284.80 and 3,013.44

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Solution

The fourth proportional to 8,856.80, 13,284.80 and 3,013.44 is: 4,520.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.80 : 13,284.80 = 3,013.44 : x
  2. Step 2: Convert to fraction form
    8,856.80/13,284.80 = 3,013.44/x
  3. Step 3: Cross multiply
    8,856.80x = 13,284.80 × 3,013.44
  4. Step 4: Simplify right side
    8,856.80x = 40,032,947.71
  5. Step 5: Solve for x
    x = 40,032,947.71/8,856.80
  6. Step 6: Final answer
    x = 4,520.02

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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.