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Finding the Fourth Proportional to 8,824.82, 13,239.45 and 4,143.96

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Solution

The fourth proportional to 8,824.82, 13,239.45 and 4,143.96 is: 6,216.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,824.82 : 13,239.45 = 4,143.96 : x
  2. Step 2: Convert to fraction form
    8,824.82/13,239.45 = 4,143.96/x
  3. Step 3: Cross multiply
    8,824.82x = 13,239.45 × 4,143.96
  4. Step 4: Simplify right side
    8,824.82x = 54,863,751.22
  5. Step 5: Solve for x
    x = 54,863,751.22/8,824.82
  6. Step 6: Final answer
    x = 6,216.99

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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.