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Finding the Fourth Proportional to 30,499.91, 45,763.02 and 11,793.12

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Solution

The fourth proportional to 30,499.91, 45,763.02 and 11,793.12 is: 17,694.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,499.91 : 45,763.02 = 11,793.12 : x
  2. Step 2: Convert to fraction form
    30,499.91/45,763.02 = 11,793.12/x
  3. Step 3: Cross multiply
    30,499.91x = 45,763.02 × 11,793.12
  4. Step 4: Simplify right side
    30,499.91x = 539,688,786.42
  5. Step 5: Solve for x
    x = 539,688,786.42/30,499.91
  6. Step 6: Final answer
    x = 17,694.77

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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.