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Finding the Fourth Proportional to 11,906.79, 17,831.73 and 6,628.68

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Solution

The fourth proportional to 11,906.79, 17,831.73 and 6,628.68 is: 9,927.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,906.79 : 17,831.73 = 6,628.68 : x
  2. Step 2: Convert to fraction form
    11,906.79/17,831.73 = 6,628.68/x
  3. Step 3: Cross multiply
    11,906.79x = 17,831.73 × 6,628.68
  4. Step 4: Simplify right side
    11,906.79x = 118,200,832.02
  5. Step 5: Solve for x
    x = 118,200,832.02/11,906.79
  6. Step 6: Final answer
    x = 9,927.18

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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.