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Finding the Fourth Proportional to 21,662.52, 32,493.76 and 5,246.52

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Solution

The fourth proportional to 21,662.52, 32,493.76 and 5,246.52 is: 7,869.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,662.52 : 32,493.76 = 5,246.52 : x
  2. Step 2: Convert to fraction form
    21,662.52/32,493.76 = 5,246.52/x
  3. Step 3: Cross multiply
    21,662.52x = 32,493.76 × 5,246.52
  4. Step 4: Simplify right side
    21,662.52x = 170,479,161.72
  5. Step 5: Solve for x
    x = 170,479,161.72/21,662.52
  6. Step 6: Final answer
    x = 7,869.78

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Similar ratio
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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.