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Finding the Fourth Proportional to 21,956.03, 32,910.42 and 9,481.92

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Solution

The fourth proportional to 21,956.03, 32,910.42 and 9,481.92 is: 14,212.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,956.03 : 32,910.42 = 9,481.92 : x
  2. Step 2: Convert to fraction form
    21,956.03/32,910.42 = 9,481.92/x
  3. Step 3: Cross multiply
    21,956.03x = 32,910.42 × 9,481.92
  4. Step 4: Simplify right side
    21,956.03x = 312,053,969.61
  5. Step 5: Solve for x
    x = 312,053,969.61/21,956.03
  6. Step 6: Final answer
    x = 14,212.68

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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.