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Finding the Fourth Proportional to 21,960.92, 32,974.18 and 21,632.88

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Solution

The fourth proportional to 21,960.92, 32,974.18 and 21,632.88 is: 32,481.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960.92 : 32,974.18 = 21,632.88 : x
  2. Step 2: Convert to fraction form
    21,960.92/32,974.18 = 21,632.88/x
  3. Step 3: Cross multiply
    21,960.92x = 32,974.18 × 21,632.88
  4. Step 4: Simplify right side
    21,960.92x = 713,326,479.04
  5. Step 5: Solve for x
    x = 713,326,479.04/21,960.92
  6. Step 6: Final answer
    x = 32,481.63

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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.