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Finding the Fourth Proportional to 28,965.78, 43,448.22 and 9,244.22

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Solution

The fourth proportional to 28,965.78, 43,448.22 and 9,244.22 is: 13,866.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,965.78 : 43,448.22 = 9,244.22 : x
  2. Step 2: Convert to fraction form
    28,965.78/43,448.22 = 9,244.22/x
  3. Step 3: Cross multiply
    28,965.78x = 43,448.22 × 9,244.22
  4. Step 4: Simplify right side
    28,965.78x = 401,644,687.05
  5. Step 5: Solve for x
    x = 401,644,687.05/28,965.78
  6. Step 6: Final answer
    x = 13,866.18

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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.