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Finding the Fourth Proportional to 8,867.72, 13,309.74 and 4,488.26

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Solution

The fourth proportional to 8,867.72, 13,309.74 and 4,488.26 is: 6,736.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,867.72 : 13,309.74 = 4,488.26 : x
  2. Step 2: Convert to fraction form
    8,867.72/13,309.74 = 4,488.26/x
  3. Step 3: Cross multiply
    8,867.72x = 13,309.74 × 4,488.26
  4. Step 4: Simplify right side
    8,867.72x = 59,737,573.65
  5. Step 5: Solve for x
    x = 59,737,573.65/8,867.72
  6. Step 6: Final answer
    x = 6,736.52

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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.