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Finding the Fourth Proportional to 13,646.70, 20,454.48 and 6,633.48

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Solution

The fourth proportional to 13,646.70, 20,454.48 and 6,633.48 is: 9,942.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,646.70 : 20,454.48 = 6,633.48 : x
  2. Step 2: Convert to fraction form
    13,646.70/20,454.48 = 6,633.48/x
  3. Step 3: Cross multiply
    13,646.70x = 20,454.48 × 6,633.48
  4. Step 4: Simplify right side
    13,646.70x = 135,684,383.99
  5. Step 5: Solve for x
    x = 135,684,383.99/13,646.70
  6. Step 6: Final answer
    x = 9,942.65

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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.