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Finding the Fourth Proportional to 17,990.17, 24,826.03 and 11,279.45

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Solution

The fourth proportional to 17,990.17, 24,826.03 and 11,279.45 is: 15,565.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,990.17 : 24,826.03 = 11,279.45 : x
  2. Step 2: Convert to fraction form
    17,990.17/24,826.03 = 11,279.45/x
  3. Step 3: Cross multiply
    17,990.17x = 24,826.03 × 11,279.45
  4. Step 4: Simplify right side
    17,990.17x = 280,023,997.95
  5. Step 5: Solve for x
    x = 280,023,997.95/17,990.17
  6. Step 6: Final answer
    x = 15,565.39

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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.