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Finding the Fourth Proportional to 8,608.77, 11,880.93 and 4,831.94

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Solution

The fourth proportional to 8,608.77, 11,880.93 and 4,831.94 is: 6,668.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.77 : 11,880.93 = 4,831.94 : x
  2. Step 2: Convert to fraction form
    8,608.77/11,880.93 = 4,831.94/x
  3. Step 3: Cross multiply
    8,608.77x = 11,880.93 × 4,831.94
  4. Step 4: Simplify right side
    8,608.77x = 57,407,940.90
  5. Step 5: Solve for x
    x = 57,407,940.90/8,608.77
  6. Step 6: Final answer
    x = 6,668.54

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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.