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Finding the Fourth Proportional to 23,991.91, 35,987.85 and 8,409.54

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Solution

The fourth proportional to 23,991.91, 35,987.85 and 8,409.54 is: 12,614.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,991.91 : 35,987.85 = 8,409.54 : x
  2. Step 2: Convert to fraction form
    23,991.91/35,987.85 = 8,409.54/x
  3. Step 3: Cross multiply
    23,991.91x = 35,987.85 × 8,409.54
  4. Step 4: Simplify right side
    23,991.91x = 302,641,264.09
  5. Step 5: Solve for x
    x = 302,641,264.09/23,991.91
  6. Step 6: Final answer
    x = 12,614.30

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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.