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Finding the Fourth Proportional to 22,398.11, 33,589.80 and 9,917.86

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Solution

The fourth proportional to 22,398.11, 33,589.80 and 9,917.86 is: 14,873.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,398.11 : 33,589.80 = 9,917.86 : x
  2. Step 2: Convert to fraction form
    22,398.11/33,589.80 = 9,917.86/x
  3. Step 3: Cross multiply
    22,398.11x = 33,589.80 × 9,917.86
  4. Step 4: Simplify right side
    22,398.11x = 333,138,933.83
  5. Step 5: Solve for x
    x = 333,138,933.83/22,398.11
  6. Step 6: Final answer
    x = 14,873.53

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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.