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Finding the Fourth Proportional to 11,067.60, 16,605.90 and 4,828.80

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Solution

The fourth proportional to 11,067.60, 16,605.90 and 4,828.80 is: 7,245.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,067.60 : 16,605.90 = 4,828.80 : x
  2. Step 2: Convert to fraction form
    11,067.60/16,605.90 = 4,828.80/x
  3. Step 3: Cross multiply
    11,067.60x = 16,605.90 × 4,828.80
  4. Step 4: Simplify right side
    11,067.60x = 80,186,569.92
  5. Step 5: Solve for x
    x = 80,186,569.92/11,067.60
  6. Step 6: Final answer
    x = 7,245.16

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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.