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Finding the Fourth Proportional to 11,665.87, 17,493.53 and 3,343.97

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Solution

The fourth proportional to 11,665.87, 17,493.53 and 3,343.97 is: 5,014.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,665.87 : 17,493.53 = 3,343.97 : x
  2. Step 2: Convert to fraction form
    11,665.87/17,493.53 = 3,343.97/x
  3. Step 3: Cross multiply
    11,665.87x = 17,493.53 × 3,343.97
  4. Step 4: Simplify right side
    11,665.87x = 58,497,866.53
  5. Step 5: Solve for x
    x = 58,497,866.53/11,665.87
  6. Step 6: Final answer
    x = 5,014.45

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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.