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Finding the Fourth Proportional to 17,311.18, 23,899.04 and 11,351.61

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Solution

The fourth proportional to 17,311.18, 23,899.04 and 11,351.61 is: 15,671.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,311.18 : 23,899.04 = 11,351.61 : x
  2. Step 2: Convert to fraction form
    17,311.18/23,899.04 = 11,351.61/x
  3. Step 3: Cross multiply
    17,311.18x = 23,899.04 × 11,351.61
  4. Step 4: Simplify right side
    17,311.18x = 271,292,581.45
  5. Step 5: Solve for x
    x = 271,292,581.45/17,311.18
  6. Step 6: Final answer
    x = 15,671.52

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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.