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Finding the Fourth Proportional to 4,755.33, 7,131.11 and 1,831.77

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Solution

The fourth proportional to 4,755.33, 7,131.11 and 1,831.77 is: 2,746.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,755.33 : 7,131.11 = 1,831.77 : x
  2. Step 2: Convert to fraction form
    4,755.33/7,131.11 = 1,831.77/x
  3. Step 3: Cross multiply
    4,755.33x = 7,131.11 × 1,831.77
  4. Step 4: Simplify right side
    4,755.33x = 13,062,544.21
  5. Step 5: Solve for x
    x = 13,062,544.21/4,755.33
  6. Step 6: Final answer
    x = 2,746.93

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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.