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Finding the Fourth Proportional to 8,091.76, 11,167.84 and 4,949.76

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Solution

The fourth proportional to 8,091.76, 11,167.84 and 4,949.76 is: 6,831.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,091.76 : 11,167.84 = 4,949.76 : x
  2. Step 2: Convert to fraction form
    8,091.76/11,167.84 = 4,949.76/x
  3. Step 3: Cross multiply
    8,091.76x = 11,167.84 × 4,949.76
  4. Step 4: Simplify right side
    8,091.76x = 55,278,127.72
  5. Step 5: Solve for x
    x = 55,278,127.72/8,091.76
  6. Step 6: Final answer
    x = 6,831.41

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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.