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Finding the Fourth Proportional to 8,563.58, 11,820.84 and 5,542.82

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Solution

The fourth proportional to 8,563.58, 11,820.84 and 5,542.82 is: 7,651.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,563.58 : 11,820.84 = 5,542.82 : x
  2. Step 2: Convert to fraction form
    8,563.58/11,820.84 = 5,542.82/x
  3. Step 3: Cross multiply
    8,563.58x = 11,820.84 × 5,542.82
  4. Step 4: Simplify right side
    8,563.58x = 65,520,760.65
  5. Step 5: Solve for x
    x = 65,520,760.65/8,563.58
  6. Step 6: Final answer
    x = 7,651.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.