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Finding the Fourth Proportional to 8,963.35, 13,443.25 and 8,518.83

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Solution

The fourth proportional to 8,963.35, 13,443.25 and 8,518.83 is: 12,776.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,963.35 : 13,443.25 = 8,518.83 : x
  2. Step 2: Convert to fraction form
    8,963.35/13,443.25 = 8,518.83/x
  3. Step 3: Cross multiply
    8,963.35x = 13,443.25 × 8,518.83
  4. Step 4: Simplify right side
    8,963.35x = 114,520,761.40
  5. Step 5: Solve for x
    x = 114,520,761.40/8,963.35
  6. Step 6: Final answer
    x = 12,776.56

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1.5x scale

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.