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Finding the Fourth Proportional to 17,991.72, 24,844.24 and 11,288.87

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Solution

The fourth proportional to 17,991.72, 24,844.24 and 11,288.87 is: 15,588.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,991.72 : 24,844.24 = 11,288.87 : x
  2. Step 2: Convert to fraction form
    17,991.72/24,844.24 = 11,288.87/x
  3. Step 3: Cross multiply
    17,991.72x = 24,844.24 × 11,288.87
  4. Step 4: Simplify right side
    17,991.72x = 280,463,395.61
  5. Step 5: Solve for x
    x = 280,463,395.61/17,991.72
  6. Step 6: Final answer
    x = 15,588.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.