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Finding the Fourth Proportional to 19,635.21, 29,452.82 and 7,956.63

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Solution

The fourth proportional to 19,635.21, 29,452.82 and 7,956.63 is: 11,934.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,635.21 : 29,452.82 = 7,956.63 : x
  2. Step 2: Convert to fraction form
    19,635.21/29,452.82 = 7,956.63/x
  3. Step 3: Cross multiply
    19,635.21x = 29,452.82 × 7,956.63
  4. Step 4: Simplify right side
    19,635.21x = 234,345,151.41
  5. Step 5: Solve for x
    x = 234,345,151.41/19,635.21
  6. Step 6: Final answer
    x = 11,934.95

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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.