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Finding the Fourth Proportional to 17,917.15, 24,724.29 and 9,958.90

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Solution

The fourth proportional to 17,917.15, 24,724.29 and 9,958.90 is: 13,742.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,917.15 : 24,724.29 = 9,958.90 : x
  2. Step 2: Convert to fraction form
    17,917.15/24,724.29 = 9,958.90/x
  3. Step 3: Cross multiply
    17,917.15x = 24,724.29 × 9,958.90
  4. Step 4: Simplify right side
    17,917.15x = 246,226,731.68
  5. Step 5: Solve for x
    x = 246,226,731.68/17,917.15
  6. Step 6: Final answer
    x = 13,742.52

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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.