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Finding the Fourth Proportional to 8,961.32, 12,361.14 and 5,773.52

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Solution

The fourth proportional to 8,961.32, 12,361.14 and 5,773.52 is: 7,963.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961.32 : 12,361.14 = 5,773.52 : x
  2. Step 2: Convert to fraction form
    8,961.32/12,361.14 = 5,773.52/x
  3. Step 3: Cross multiply
    8,961.32x = 12,361.14 × 5,773.52
  4. Step 4: Simplify right side
    8,961.32x = 71,367,289.01
  5. Step 5: Solve for x
    x = 71,367,289.01/8,961.32
  6. Step 6: Final answer
    x = 7,963.93

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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.