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Finding the Fourth Proportional to 19,453.20, 29,158.20 and 10,694.40

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Solution

The fourth proportional to 19,453.20, 29,158.20 and 10,694.40 is: 16,029.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,453.20 : 29,158.20 = 10,694.40 : x
  2. Step 2: Convert to fraction form
    19,453.20/29,158.20 = 10,694.40/x
  3. Step 3: Cross multiply
    19,453.20x = 29,158.20 × 10,694.40
  4. Step 4: Simplify right side
    19,453.20x = 311,829,454.08
  5. Step 5: Solve for x
    x = 311,829,454.08/19,453.20
  6. Step 6: Final answer
    x = 16,029.73

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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.