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Finding the Fourth Proportional to 11,581.99, 17,372.82 and 2,816.92

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Solution

The fourth proportional to 11,581.99, 17,372.82 and 2,816.92 is: 4,225.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,581.99 : 17,372.82 = 2,816.92 : x
  2. Step 2: Convert to fraction form
    11,581.99/17,372.82 = 2,816.92/x
  3. Step 3: Cross multiply
    11,581.99x = 17,372.82 × 2,816.92
  4. Step 4: Simplify right side
    11,581.99x = 48,937,844.11
  5. Step 5: Solve for x
    x = 48,937,844.11/11,581.99
  6. Step 6: Final answer
    x = 4,225.34

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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.