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Finding the Fourth Proportional to 14,796.60, 20,419.19 and 8,082.23

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Solution

The fourth proportional to 14,796.60, 20,419.19 and 8,082.23 is: 11,153.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,796.60 : 20,419.19 = 8,082.23 : x
  2. Step 2: Convert to fraction form
    14,796.60/20,419.19 = 8,082.23/x
  3. Step 3: Cross multiply
    14,796.60x = 20,419.19 × 8,082.23
  4. Step 4: Simplify right side
    14,796.60x = 165,032,589.99
  5. Step 5: Solve for x
    x = 165,032,589.99/14,796.60
  6. Step 6: Final answer
    x = 11,153.41

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Half scale
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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.