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Finding the Fourth Proportional to 19,793.12, 29,700.72 and 10,558.88

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Solution

The fourth proportional to 19,793.12, 29,700.72 and 10,558.88 is: 15,844.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,793.12 : 29,700.72 = 10,558.88 : x
  2. Step 2: Convert to fraction form
    19,793.12/29,700.72 = 10,558.88/x
  3. Step 3: Cross multiply
    19,793.12x = 29,700.72 × 10,558.88
  4. Step 4: Simplify right side
    19,793.12x = 313,606,338.39
  5. Step 5: Solve for x
    x = 313,606,338.39/19,793.12
  6. Step 6: Final answer
    x = 15,844.21

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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.