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Finding the Fourth Proportional to 28,942.26, 43,416.52 and 9,216.22

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Solution

The fourth proportional to 28,942.26, 43,416.52 and 9,216.22 is: 13,825.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,942.26 : 43,416.52 = 9,216.22 : x
  2. Step 2: Convert to fraction form
    28,942.26/43,416.52 = 9,216.22/x
  3. Step 3: Cross multiply
    28,942.26x = 43,416.52 × 9,216.22
  4. Step 4: Simplify right side
    28,942.26x = 400,136,199.95
  5. Step 5: Solve for x
    x = 400,136,199.95/28,942.26
  6. Step 6: Final answer
    x = 13,825.33

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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.