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Finding the Fourth Proportional to 23,589.78, 32,554.02 and 12,979.32

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Solution

The fourth proportional to 23,589.78, 32,554.02 and 12,979.32 is: 17,911.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,589.78 : 32,554.02 = 12,979.32 : x
  2. Step 2: Convert to fraction form
    23,589.78/32,554.02 = 12,979.32/x
  3. Step 3: Cross multiply
    23,589.78x = 32,554.02 × 12,979.32
  4. Step 4: Simplify right side
    23,589.78x = 422,529,042.87
  5. Step 5: Solve for x
    x = 422,529,042.87/23,589.78
  6. Step 6: Final answer
    x = 17,911.53

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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.