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Finding the Fourth Proportional to 23,820.85, 35,736.72 and 8,238.46

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Solution

The fourth proportional to 23,820.85, 35,736.72 and 8,238.46 is: 12,359.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,820.85 : 35,736.72 = 8,238.46 : x
  2. Step 2: Convert to fraction form
    23,820.85/35,736.72 = 8,238.46/x
  3. Step 3: Cross multiply
    23,820.85x = 35,736.72 × 8,238.46
  4. Step 4: Simplify right side
    23,820.85x = 294,415,538.25
  5. Step 5: Solve for x
    x = 294,415,538.25/23,820.85
  6. Step 6: Final answer
    x = 12,359.57

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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.