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Finding the Fourth Proportional to 29,321.64, 43,989.74 and 11,553.48

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Solution

The fourth proportional to 29,321.64, 43,989.74 and 11,553.48 is: 17,333.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,321.64 : 43,989.74 = 11,553.48 : x
  2. Step 2: Convert to fraction form
    29,321.64/43,989.74 = 11,553.48/x
  3. Step 3: Cross multiply
    29,321.64x = 43,989.74 × 11,553.48
  4. Step 4: Simplify right side
    29,321.64x = 508,234,581.30
  5. Step 5: Solve for x
    x = 508,234,581.30/29,321.64
  6. Step 6: Final answer
    x = 17,333.09

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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.