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Finding the Fourth Proportional to 14,952.42, 20,617.23 and 11,169.21

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Solution

The fourth proportional to 14,952.42, 20,617.23 and 11,169.21 is: 15,400.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,952.42 : 20,617.23 = 11,169.21 : x
  2. Step 2: Convert to fraction form
    14,952.42/20,617.23 = 11,169.21/x
  3. Step 3: Cross multiply
    14,952.42x = 20,617.23 × 11,169.21
  4. Step 4: Simplify right side
    14,952.42x = 230,278,171.49
  5. Step 5: Solve for x
    x = 230,278,171.49/14,952.42
  6. Step 6: Final answer
    x = 15,400.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.