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Finding the Fourth Proportional to 8,220.22, 12,329.11 and 3,024.88

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Solution

The fourth proportional to 8,220.22, 12,329.11 and 3,024.88 is: 4,536.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.22 : 12,329.11 = 3,024.88 : x
  2. Step 2: Convert to fraction form
    8,220.22/12,329.11 = 3,024.88/x
  3. Step 3: Cross multiply
    8,220.22x = 12,329.11 × 3,024.88
  4. Step 4: Simplify right side
    8,220.22x = 37,294,078.26
  5. Step 5: Solve for x
    x = 37,294,078.26/8,220.22
  6. Step 6: Final answer
    x = 4,536.87

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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.