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Finding the Fourth Proportional to 17,917.91, 24,727.68 and 9,960.87

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Solution

The fourth proportional to 17,917.91, 24,727.68 and 9,960.87 is: 13,746.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,917.91 : 24,727.68 = 9,960.87 : x
  2. Step 2: Convert to fraction form
    17,917.91/24,727.68 = 9,960.87/x
  3. Step 3: Cross multiply
    17,917.91x = 24,727.68 × 9,960.87
  4. Step 4: Simplify right side
    17,917.91x = 246,309,298.61
  5. Step 5: Solve for x
    x = 246,309,298.61/17,917.91
  6. Step 6: Final answer
    x = 13,746.54

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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.