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Finding the Fourth Proportional to 8,866.26, 12,239.91 and 5,880.60

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Solution

The fourth proportional to 8,866.26, 12,239.91 and 5,880.60 is: 8,118.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,866.26 : 12,239.91 = 5,880.60 : x
  2. Step 2: Convert to fraction form
    8,866.26/12,239.91 = 5,880.60/x
  3. Step 3: Cross multiply
    8,866.26x = 12,239.91 × 5,880.60
  4. Step 4: Simplify right side
    8,866.26x = 71,978,014.75
  5. Step 5: Solve for x
    x = 71,978,014.75/8,866.26
  6. Step 6: Final answer
    x = 8,118.19

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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.