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Finding the Fourth Proportional to 41,219.40, 61,830.90 and 13,517.40

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Solution

The fourth proportional to 41,219.40, 61,830.90 and 13,517.40 is: 20,276.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,219.40 : 61,830.90 = 13,517.40 : x
  2. Step 2: Convert to fraction form
    41,219.40/61,830.90 = 13,517.40/x
  3. Step 3: Cross multiply
    41,219.40x = 61,830.90 × 13,517.40
  4. Step 4: Simplify right side
    41,219.40x = 835,793,007.66
  5. Step 5: Solve for x
    x = 835,793,007.66/41,219.40
  6. Step 6: Final answer
    x = 20,276.69

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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.