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Finding the Fourth Proportional to 20,614.99, 30,922.41 and 7,464.29

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Solution

The fourth proportional to 20,614.99, 30,922.41 and 7,464.29 is: 11,196.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,614.99 : 30,922.41 = 7,464.29 : x
  2. Step 2: Convert to fraction form
    20,614.99/30,922.41 = 7,464.29/x
  3. Step 3: Cross multiply
    20,614.99x = 30,922.41 × 7,464.29
  4. Step 4: Simplify right side
    20,614.99x = 230,813,667.13
  5. Step 5: Solve for x
    x = 230,813,667.13/20,614.99
  6. Step 6: Final answer
    x = 11,196.40

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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.