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Finding the Fourth Proportional to 23,969.44, 35,979.72 and 21,213.64

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Solution

The fourth proportional to 23,969.44, 35,979.72 and 21,213.64 is: 31,843.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,969.44 : 35,979.72 = 21,213.64 : x
  2. Step 2: Convert to fraction form
    23,969.44/35,979.72 = 21,213.64/x
  3. Step 3: Cross multiply
    23,969.44x = 35,979.72 × 21,213.64
  4. Step 4: Simplify right side
    23,969.44x = 763,260,827.38
  5. Step 5: Solve for x
    x = 763,260,827.38/23,969.44
  6. Step 6: Final answer
    x = 31,843.08

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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.