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Finding the Fourth Proportional to 11,141.76, 16,712.62 and 2,933.76

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Solution

The fourth proportional to 11,141.76, 16,712.62 and 2,933.76 is: 4,400.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,141.76 : 16,712.62 = 2,933.76 : x
  2. Step 2: Convert to fraction form
    11,141.76/16,712.62 = 2,933.76/x
  3. Step 3: Cross multiply
    11,141.76x = 16,712.62 × 2,933.76
  4. Step 4: Simplify right side
    11,141.76x = 49,030,816.05
  5. Step 5: Solve for x
    x = 49,030,816.05/11,141.76
  6. Step 6: Final answer
    x = 4,400.63

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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.