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Finding the Fourth Proportional to 23,691.45, 35,525.26 and 7,890.88

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Solution

The fourth proportional to 23,691.45, 35,525.26 and 7,890.88 is: 11,832.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,691.45 : 35,525.26 = 7,890.88 : x
  2. Step 2: Convert to fraction form
    23,691.45/35,525.26 = 7,890.88/x
  3. Step 3: Cross multiply
    23,691.45x = 35,525.26 × 7,890.88
  4. Step 4: Simplify right side
    23,691.45x = 280,325,563.63
  5. Step 5: Solve for x
    x = 280,325,563.63/23,691.45
  6. Step 6: Final answer
    x = 11,832.35

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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.