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Finding the Fourth Proportional to 19,229.92, 28,834.88 and 8,694.91

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Solution

The fourth proportional to 19,229.92, 28,834.88 and 8,694.91 is: 13,037.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,229.92 : 28,834.88 = 8,694.91 : x
  2. Step 2: Convert to fraction form
    19,229.92/28,834.88 = 8,694.91/x
  3. Step 3: Cross multiply
    19,229.92x = 28,834.88 × 8,694.91
  4. Step 4: Simplify right side
    19,229.92x = 250,716,686.46
  5. Step 5: Solve for x
    x = 250,716,686.46/19,229.92
  6. Step 6: Final answer
    x = 13,037.84

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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.